How to zero holosun 507k

The Holosun Sub-compact HS507K-X2 1x 2 MOA Dot Red Dot Sights is an open reflex sight designed specifically for concealed carry handguns. These Red Dot Sights feature tons of innovative tech from Holosun, including Shake Awake technology that powers the optic on when it senses movement and powers off when it does not, a Multi Reticle …

One method of zeroing a reflex optic is to line the dot from the optic over – or directly on – where the point of aim would normally be on the standard sights. There is some personal preference...To change the reticle on the Holosun 507k, simply press and hold the “+” button for 3 seconds until the reticle starts to flash. Then use the “+” or “-” buttons to cycle through the reticle options and press the “power” button to confirm your selection. See 3,000+ New Gun Deals HERE. 1.Oct 11, 2023 · 11. Oct. Getting your new Holosun 507k red dot sight perfectly zeroed is crucial for accuracy. While it may seem complicated, this process can realistically be completed in around 5 minutes if you follow the right steps. Holosun 507K X2. Kurz means short in German and has been applied to the .380 ACP as the 9mm Kurz, in the MP5K, and so on. So, now that we have that weird …4 Oct 2022 ... ... Holosun 507K red dot as I show you how to install it on the Sig Sauer 365X Macro compact. Holosun 507K red dot: https://amzn.to/3C7bYjl.Feb 19, 2021 · Holosun 507k. The Holosun 507k is a very tiny miniature reflex sight. Like I mentioned earlier, it’s designed to be mounted on a single stack concealed carry handgun, and because of that, it is very small (the Holosun 507c is for a more standard double stack handgun)…. Now the height on the 507k measures in at 0.95 inches. Hold it up to the light and see if there's enough of a gap to see the shadow of the screws. If so, see if the optic or adapter plate is rubbing on the edges, if the screws might be too long and have bottomed out in the holes without capturing the optic tightly, or if one of the surfaces might not be level. Or it could be the optic. That happens.P365 SAS Optic Cut: Romeo Zero / Holosun 407k/507k / Shield RMSC. This Machining service allows you to mount a Holosun 407k/507k, Romeo Zero, or Shield RMSC optic onto your supplied P365 SAS slide. This optic cut is NOT COMPATIBLE with the optional Romeo Zero Shroud. Please email if you need a cut that is compatible with the optional Romeo …

Apr 28, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... We call the Holosun K Series footprint a "Modified RMSc footprint" because it's very similar with only a few differences. The optics that have a Holosun K Series footprint are the 407K, 507K, EPS, and EPS Carry. Holosun K Series Footprint vs Shield RMSc Footprint. A normal Shield RMSc Footprint has 4 recoil lugs, two in the front, two …Several red dot sights share the same footprint as the Romeo Zero, which is designed specifically for the Sig Sauer P365XL pistol. Some popular optics that have the same footprint are the Shield RMS-C, Holosun HS507k, Swampfox Sentinel, and SIG Romeo Zero Pro. These optics can be easily swapped out with the Romeo Zero without the …Nov 4, 2021 · Holosun 507k (first version) mounted on p365XL. After a few range trips and a few hundred rounds the zero shifted substantially, 6 to 8 inches low and right. After re-zeroing my groups where horrible. After one shot I noticed the red dot had suddenly shifted high left by about a foot at 25 yards with respect to the iron sights. To change the reticle on the Holosun 507k, simply press and hold the “+” button for 3 seconds until the reticle starts to flash. Then use the “+” or “-” buttons to cycle through the reticle options and press the “power” button to confirm your selection. See 3,000+ New Gun Deals HERE. 1. P365 Optic Cut: Romeo Zero / Holosun 407k/507k / Shield RMSC. This Machining service allows you to mount a Holosun 407k/507k, Romeo Zero, or Shield RMSC optic onto your supplied P365 slide. This optic cut is NOT COMPATIBLE with the optional Romeo Zero Shroud. Please email if you need a cut that is compatible with the optional Romeo Zero shroud ...

The Holosun HS507K-X2 Reflex Sight is expertly designed with precision and durability in mind. It boasts a rugged yet lightweight aluminum housing, ensuring superior resistance to impact and harsh environmental conditions. The sight is also equipped with a multi-coated lens that provides exceptional clarity, allowing for quick target ...Finish: Plates are MIL-SPEC Type III Hard Anodized – Black. Replaceable 416 Stainless Steel T-Posts for maximum thread engagement. INCLUDED: Qty 1 – Optic Plate. Qty 3 – M3 x 6 MM FH Plate Mounting Screws. Qty 3 – 4-40 x .345 FBH Holosun 407K / 507K , CHPWS EDC Optic Mounting Screws. Qty 3 – Patented 416 Stainless Steel T-Nuts.507Comp-RD handgun sight features a large 1.1” x 0.87” objective lens for enhanced shooting performance and Holosun’s new Competition Reticle System (CRS) with Holosun’s 650nm Red Super LED and up to 50k hour battery life with a 1632 cell. CRS is an enhanced multi-reticle system with four components including a precision 2MOA dot, an ...Final Verdict. Both the Holosun 507k and the Sig Romeo Zero offer unique advantages as compact optics for single-stack concealed carry pistols. The Holosun 507k outshines the Romeo Zero in durability, lens clarity, reticle options, battery life, and included accessories. However, the Sig Romeo Zero emerges as the winner in terms of size and …

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Holosun 507C X2 Features & More. The Holosun 507C X2 offers a low-profile, lightweight, RMR-patterned handgun optic. That comes partnered with Primary Arms’ signature ACSS Vulcan 10 MOA chevron reticle. Offering 12 brightness settings in total, this optic sports an aluminum design weighing in at a minuscule 1.5-ounces.Holosun 507k. The Holosun 507k is a very tiny miniature reflex sight. Like I mentioned earlier, it’s designed to be mounted on a single stack concealed carry handgun, and because of that, it is very small (the Holosun 507c is for a more standard double stack handgun)…. Now the height on the 507k measures in at 0.95 inches.Apr 9, 2022 · a manual for the ACSS Vulcan reticle, a manual for the Holosun 507C X2 red dot sight manual, a warranty registration card, a lens cloth, a pair of long Torx mounting screws, a pair of short Torx mounting screws, an installation and adjustment tool, the red dot sight with a preinstalled CR1632 battery. That’s pretty much everything anyone ... Score: 8/10. 6. Ease of Use. The ROMEO Zero dances a fine line between efficiency and quirks. While MOTAC, the Motion Activated Illumination System, seamlessly powers up the illumination with every motion detection, the hiccup arises in the location of controls for zeroing and battery adjustments.Holosun optics are known for their durability and use of high quality materials. The optics from the 507 series are made with 7075 T6 aluminum, which make them lightweight and sturdy. Additionally, the optics for both 507K and the 507K X2 are fog and waterproof, with an IP67 rating. The sights have also been tested for use in harsh temperatures ...holosun 507k/407k/eps/eps carry optic cut machining service for customer supplied glock slides. utilizes (2) 4-40 x 5/16" torx (t10) mounting screws (included) re-assembly and iron sight installation included. allows for mounting holosun 507k/407k/eps/eps carry (x2 compatible) optic directly to your glock slide.

Jun 1, 2022 · However, there are differences in their dimensions and weights. The dimensions of the 507k are 1.6" long, 0.98" wide, and 0.95" tall, making it the smaller of the two. Additionally, it weighs only one ounce, meaning it will not significantly affect the balance of your pistol. The 507C weighs 1.5 ounces, which is 50% more than its predecessor. 18 Apr 2021 ... The Holosun 507k, Sig Sauer Romeo Zero, and Swampfox Sentinel M are all very popular compact red dots. In this video we review the three ...When the battery is low on the Holosun 507c, the reticle will begin to flicker or the brightness level may appear dim and inconsistent. 1. How long does the Holosun 507c battery typically last? The battery life of the Holosun 507c is around 50,000 hours on a medium setting. 2.The 507k (KILO) follows the Shield RMS footprint. The 507c (CHARLIE) follows the Trijicon RMR footprint. Take the plate out and compare it to a straight-edge and see if it isn't a defect or something. If that doesn't work then check to see if the screw length is correct, though this is more of a hail Mary guess than an actual hypothesis.Aug 12, 2020 · I zero the dot in the center of the screen to give me more area to see around the target. I then compensate my POA when using the iron sights. I initially zero from a bench and then fine tune from my regular shooting position if needed. A Closer Look at the Features. 1. Reticle Options: Versatility Redefined. The Holosun HS507K-X2 takes pride in its Multiple Reticle System (MRS). This allows you to choose between a precise 2 MOA dot for those accurate shots or a 32 MOA circle for quicker target acquisition.Title: HS507K_20200331.cdr Author: zzz Created Date: 4/1/2020 9:12:43 AMWhen it comes to mowing your lawn, you want the best equipment available. Residential zero turn mowers are the perfect choice for homeowners who want a fast, efficient, and easy wa...How to install a 507K x2 on a Glock 43X MOS. Bore Sight Video - https://youtu.be/lsKDIzO0SJ8#workmanfirearms #glock43x #holosun Legal Notice: All content on ...Check out our owners guide for Holosun 507k problems and solutions, Holosun 507k footprint, battery info, how to mount, manual and more.Method 1: Use Laser Boresight. Using a laser boresight is the fastest method to zero a Holosun 507c without firing a shot. You have to just move the reticle inside the ballpark range of the laser pointer. After the confirmation, adjust the same with ammunition later.Description. HOLOSUN 507K / ROMEO ZERO OPTIC COVER PLATE FOR THE SINGLE STACK MODELS: 43. 43X. 48. INCLUDES OPTIC COVER SCREWS. WILL NOT FIT GLOCK M.O.S. SLIDES. WILL NOT FIT GLOCK M.O.S. SLIDES. Not guaranteed to fit optic cuts machined by other companies.

Learn how to zero your Holosun 507K optic sight for better accuracy and target acquisition. This guide covers mounting, adjustment features, and step-by-step zeroing techniques. Master the art of zeroing and elevate your shooting experience.

Mar 4, 2023 · The 507K Vulcan states battery life at 25,000 hrs to 50,000 hrs. This is very similar to the 507K MRS. 509 Differences vs 509T MRS. We also think it’s important to mention that the Holosun 509 ACSS Vulcan is not the same exact optic as the 509T. The 509T is made out of titanium and the 509 ACSS Vulcan is made out of aluminum. Nov 4, 2021 · Holosun 507k (first version) mounted on p365XL. After a few range trips and a few hundred rounds the zero shifted substantially, 6 to 8 inches low and right. After re-zeroing my groups where horrible. After one shot I noticed the red dot had suddenly shifted high left by about a foot at 25 yards with respect to the iron sights. Feb 19, 2021 · Holosun 507k. The Holosun 507k is a very tiny miniature reflex sight. Like I mentioned earlier, it’s designed to be mounted on a single stack concealed carry handgun, and because of that, it is very small (the Holosun 507c is for a more standard double stack handgun)…. Now the height on the 507k measures in at 0.95 inches. Jun 24, 2021 · Zero setting 1) This sight has been factory adjusted to an approximate 25 yard zero and should require minimal adjustment to achieve zero. 2) The Elevation adjustment is located on top of the tail section of the housing and the Windage adjustment is located on the right side of the housing. Adjustment can be performed by inserting the flat- Both the Holosun 407c and the 507c are very durable red dot sights. First of all, the sight housing on both sights is made from machined 7075 T6 aluminum…. ..and they both have an anodized surface treatment to help protect the optic from the elements. In addition to that, they are both waterproof in up to 1 meter of water.Holosun 507C X2 vs 507K X2 Battery Life. The Holosun 507C X2 and the 507K X2 have the same battery life. They are both rated at around 20,000 hours of battery life using the MRS reticle on setting 6. If you were to use the 2 MOA dot only, the battery life would be 50,000 hours. Holosun 507C X2 vs 507K X2 Similarities. They both have shake awakea manual for the ACSS Vulcan reticle, a manual for the Holosun 507C X2 red dot sight manual, a warranty registration card, a lens cloth, a pair of long Torx mounting screws, a pair of short Torx mounting screws, an installation and adjustment tool, the red dot sight with a preinstalled CR1632 battery. That’s pretty much everything anyone ...Hold it up to the light and see if there's enough of a gap to see the shadow of the screws. If so, see if the optic or adapter plate is rubbing on the edges, if the screws might be too long and have bottomed out in the holes without capturing the optic tightly, or if one of the surfaces might not be level. Or it could be the optic. That happens.Feb 19, 2021 · Holosun 507k. The Holosun 507k is a very tiny miniature reflex sight. Like I mentioned earlier, it’s designed to be mounted on a single stack concealed carry handgun, and because of that, it is very small (the Holosun 507c is for a more standard double stack handgun)…. Now the height on the 507k measures in at 0.95 inches. Apr 29, 2021 · The Holosun 507K is the best subcompact red dot I’ve ever used. Getting Down and Dirty. Let’s stop jawin’ and start shooting. I zeroed the 507K at 10 yards. Hear me out. This is a concealed carry pistol, and 10 yards is more than enough. A 10-yard zero carries me out to 25 yards without issue.

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The speaker demonstrates the process of zeroing at different yardages and highlights the significance of trigger manipulation. He concludes by emphasizing the importance of reading the user manual and taking the time to learn the specific features of the optic before attempting to zero it.DetailsMade as a collaboration between Holosun Optics and Primary Arms Optics, the red-illuminated HS507K-X2 with patented ACSS® Vulcan® Dot Reticle brings the revolutionary Vulcan aiming system to a micro reflex footprint.Designed for concealed carry, the HS507K-X2-ACSS is lightweight, durable, and dependable, with up to a 40,000-hour …This mounting standard is designed to fit directly onto the cut of Smith & Wesson M&P 2.0 optic-ready pistols, without having to use an additional plate. There are two screw holes for mounting purposes – the other features can be observed in the image below. Red dots that share this mounting standard: Holosun SCS MP2.Zero turn mowers are a great way to get your lawn looking its best. They are easy to maneuver and can make quick work of cutting your grass. But with so many different models and b...Jun 24, 2021 · Zero setting 1) This sight has been factory adjusted to an approximate 25 yard zero and should require minimal adjustment to achieve zero. 2) The Elevation adjustment is located on top of the tail section of the housing and the Windage adjustment is located on the right side of the housing. Adjustment can be performed by inserting the flat- Let's compare the Holosun HS507K X2 to the Sig Sauer Romeo Zero, I quickly talk about the features of these two small red dots and tell you what I think of t...Jun 24, 2021 · Sight Operation Zero Setting 1) This sight has been factory adjusted to an approximate 25 yard zero and should require minimal adjustment to achieve zero. 2) The Elevation adjustment is located on top of the tail section of the housing and the Windage adjustment is located on the right side of the housing. Adjustment can be Nov 14, 2023 · Yes, the Holosun 507K is designed with concealed carry applications in mind. Its slim profile and durability make it an ideal choice for subcompact handguns and compact pistols. It’s been tested for drop resistance and retains zero after thousands of rounds, enhancing its suitability for concealed carry. ….

507Comp-RD handgun sight features a large 1.1” x 0.87” objective lens for enhanced shooting performance and Holosun’s new Competition Reticle System (CRS) with Holosun’s 650nm Red Super LED and up to 50k hour battery life with a 1632 cell. CRS is an enhanced multi-reticle system with four components including a precision 2MOA dot, an ...Holosun 507k. The Holosun 507k is a very tiny miniature reflex sight. Like I mentioned earlier, it’s designed to be mounted on a single stack concealed carry handgun, and because of that, it is very small (the Holosun 507c is for a more standard double stack handgun)…. Now the height on the 507k measures in at 0.95 inches.1.5 oz (0.09 lbs) Dimensions (LxWxH) 5 x 4 x 4 inches: Score: 9/10 4. Battery Life. About that battery life. The Holosun 507Cs have some serious staying power. ... The key difference between the Holosun 507C and 507K is that the 507C includes a solar panel for additional power, whereas the 507K does not have this feature. Will Holosun 507C …The operating voltage for this device is DC3V using one high quality CR1632 Lithium battery which is included with purchase. Ahigh quality battery can power this device for up to 50,000 hours at setting 6. Caution: The battery is not rechargeable. Removing the Battery : I. Remove the battery tray screw. ii.The Holosun 407k also has a very clear lens that allows you to get a clean sight picture. In my opinion, it’s just as clear as the 507k (they are both Holosun optics after all)…. But when we start talking about the reticle, that’s where things start to change. The 407k has a fixed 6 MOA dot reticle….The Holosun K Red Dot Footprint. The Holosun 507K (HS507K), Holosun 407K, EPS Carry, and EPS are very popular red dot sights that have grabbed the attention of the gun community for their innovation, durability, clarity, and useability on carry guns. These optics boast many features such as shake-awake technology, 50,000 hours of battery life ... The HE507K-GR X2 improves on previous the version by adding Lock Mode which was first introduced in our 2018 LEM pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include Holosun’s Green Super LED with up to 50k hour battery life, Multi-Reticle System, and Shake Awake. The 507k (KILO) follows the Shield RMS footprint. The 507c (CHARLIE) follows the Trijicon RMR footprint. Take the plate out and compare it to a straight-edge and see if it isn't a defect or something. If that doesn't work then check to see if the screw length is correct, though this is more of a hail Mary guess than an actual hypothesis.14 Jun 2021 ... Holosun 507k vs 507k ACSS: Comparison & Review ... 407K/507K. Tessah Booth•108K views · 8:16 · Go to channel · See ... The Zero, the off-se...JOIN this channel to get access to perks:https://www.youtube.com/channel/UCh6iq_mOy33ZPp2EMhqQOeA/joinMy AMAZON Store: https://www.amazon.com/shop/jamesyeage... How to zero holosun 507k, Solution: Ensure that you’re using a high-quality, fresh battery. The 507k uses a CR1632 battery, so always opt for reliable brands. Secondly, check the battery tray and compartment for any sign of damage or improper installation. If your sight is losing power, it might be a connection issue., To reset a Holosun 507c red dot sight, simply press and hold both the “+” and “-” buttons simultaneously for 3-5 seconds until the sight powers off and back on. 1. How do I turn off my Holosun 507c? To turn off your Holosun 507c, simply press and hold both the “+” and “-” buttons simultaneously for 3-5 seconds. 2., Holosun 507k: Sig Romeo Zero: Winner: Durability and Toughness: 7075-T6 aluminum, IP67 rating: Weapons Grade Ultralite Polymer, IPX7 rating: Holosun 507k: …, you don’t need to modify anything. Use a 5/64” hex to remove the screws (apply firm downward pressure and torque slow and steady to avoid stripping the heads). Then it drops right in with the skinnier screws that come with the Holosun., Holosun 507K. Weighing in at 1 ounce, the Holosun 507k isn’t far behind. Although it’s heavier than the Swampfox Sentinel by 0.38 ounces, the difference is hardly noticeable for most shooters. Its low weight means that the optic won’t drastically impact your ability to hold and aim your weapon. The one-ounce weight still falls in the ..., holosun 507k/407k/eps/eps carry optic cut machining service for customer supplied glock slides. utilizes (2) 4-40 x 5/16" torx (t10) mounting screws (included) re-assembly and iron sight installation included. allows for mounting holosun 507k/407k/eps/eps carry (x2 compatible) optic directly to your glock slide., To zero your Holosun 507k X2, start by adjusting the windage and elevation screws until your point of aim matches the point of impact. Use a bore sight or shoot a group to fine-tune your zero. 1., Zillion has an indeterminate number of zeroes. Despite the popular misconception, zillion actually is not a true number. Rather, zillion is defined as an indeterminately large numb..., The sight maintains zero consistently, even after extensive use. The manual brightness settings are excellent and easy to adjust. ... With an MSRP just shy of $350, …, Jun 24, 2021 · Zero setting 1) This sight has been factory adjusted to an approximate 25 yard zero and should require minimal adjustment to achieve zero. 2) The Elevation adjustment is located on top of the tail section of the housing and the Windage adjustment is located on the right side of the housing. Adjustment can be performed by inserting the flat- , I used some competition reloads to get on paper and then dialed the zero in with one adjustment. I used Federal HST 147 grain standard pressure rounds., Apr 28, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... , The sight maintains zero consistently, even after extensive use. The manual brightness settings are excellent and easy to adjust. ... With an MSRP just shy of $350, the Holosun 507K X2 offers ..., EDIT: -Summary -Lost zero, then glass fell out, I sent it back for warranty coverage, got it replaced with X2 version. ORIGINAL POST: I have had my p365XL and Holosun 507K for about a week or two and bought a Wheeler FAT torque wrench to tighten it to specs (15 in-lbs) but it still hardly gets thru a range session without losing zero by several inches., Apr 6, 2021 · Wee Little: 507K X2. Holosun’s 507K shares some similar design features as the 507C. K in the gun world traditionally means the more compact variant of a gun – it’s an interesting designator rooted in the German word Kurz. Holosun 507K X2. Kurz means short in German and has been applied to the .380 ACP as the 9mm Kurz, in the MP5K, and so on. , El_Zalo. You get more features for less with Holosun. Bigger window, less tint, choice of cirlce/dot/both reticle (with the 507c), side load battery tray (on the V2's). RMRs are probably "better", but Holosuns are "good enough" for most people., When it comes to choosing a refrigerator for your home, Sub Zero is a brand that stands out for its quality and performance. Among their impressive lineup, the Sub Zero 36 inch ref..., Mowing the lawn is one of those necessary chores that many homeowners dread. But with the right equipment, it can be a breeze. Residential zero turn mowers are becoming increasingl..., Jun 24, 2021 · Zero setting 1) This sight has been factory adjusted to an approximate 25 yard zero and should require minimal adjustment to achieve zero. 2) The Elevation adjustment is located on top of the tail section of the housing and the Windage adjustment is located on the right side of the housing. Adjustment can be performed by inserting the flat- , Apr 20, 2021 · HOLOSUN GREEN DOT SIGHT - The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications; It features Lock Mode that locks the buttons preventing inadvertent setting changes; This handgun sight is a direct for P365X/XL, and requires an adapter plate for slides with a four-boss interface; Multi Tool, Lens Cloth, and ... , How to install a 507K x2 on a Glock 43X MOS. Bore Sight Video - https://youtu.be/lsKDIzO0SJ8#workmanfirearms #glock43x #holosun Legal Notice: All content on ..., 4 Oct 2022 ... ... Holosun 507K red dot as I show you how to install it on the Sig Sauer 365X Macro compact. Holosun 507K red dot: https://amzn.to/3C7bYjl., To adjust the Holosun 507k, use a small screwdriver to turn the elevation and windage screws located on the side and top of the sight. 1. Can I adjust the brightness of the Holosun 507k? Yes, the Holosun 507k has a side-mounted brightness dial that allows for easy adjustment. See 3,000+ New Gun Deals HERE. 2., #reddot #reddotsight #holosun #sighting #accuracy #accurate #shooting #concealedcarry #edc #training #everydaycarry #guns #pewpew #pewpewlife #howto, 1 Aug 2021 ... HOLOSUN 507K? MUST WATCH before buying… 45K ... Holosun 507K. SageDynamics•297K views · 6:44 · Go to ... Tenicor Zero EDC Belt Review. Citizen ..., February 21, 2024 by Robert Carlson. To reset a Holosun 507k X2, first remove the battery tray by unscrewing the two screws on the side. Then, press and hold the “+” button while re-inserting the battery tray. Once the unit powers on, release the button to complete the reset. See 3,000+ New Gun Deals HERE., 2006 posts · Joined 2005. #1 · Oct 13, 2020. A while ago I mounted the Holosun 507K to my 43X MOS, without a plate. Fired fine, but the elevation was off. Shoots high. I thought maybe its because I didn't have the plate. Got the plate and still...the red dot won't go down far enough., EDIT: -Summary -Lost zero, then glass fell out, I sent it back for warranty coverage, got it replaced with X2 version. ORIGINAL POST: I have had my p365XL and Holosun 507K for about a week or two and bought a Wheeler FAT torque wrench to tighten it to specs (15 in-lbs) but it still hardly gets thru a range session without losing zero by several inches., Before the range trip, I had started my zero process at home by “lollipopping” the red dot on top of my SIG’s front sight post, just as a reference off of which to adjust. …, EDIT: -Summary -Lost zero, then glass fell out, I sent it back for warranty coverage, got it replaced with X2 version. ORIGINAL POST: I have had my p365XL and Holosun 507K for about a week or two and bought a Wheeler FAT torque wrench to tighten it to specs (15 in-lbs) but it still hardly gets thru a range session without losing zero by several inches., 3. Inaccurate Zeroing or Drifting Zero. Some Holosun 507k users have reported that their sights are not properly zeroed or that the zero drifts over time. This can be incredibly frustrating, as it means having to repeat the zeroing process regularly or missing targets due to inaccurate shots., To reset a Holosun 507c red dot sight, simply press and hold both the “+” and “-” buttons simultaneously for 3-5 seconds until the sight powers off and back on. 1. How do I turn off my Holosun 507c? To turn off your Holosun 507c, simply press and hold both the “+” and “-” buttons simultaneously for 3-5 seconds. 2., Yes, the Holosun 507K is designed with concealed carry applications in mind. Its slim profile and durability make it an ideal choice for subcompact handguns and compact pistols. It’s been tested for drop resistance and retains zero after thousands of rounds, enhancing its suitability for concealed carry.