This set is used with our 5.56mm Q.D. … On brakes that cannot be more than 90 degrees out of time, one pack usually suffices. Mine is for my Glock 21, with a threaded barrel. What do you use? Still easier than using a peel washer I’m sure. (So there!). 'For this man who needs amazing kind of grace. shims are very very thin washers that you stack until you get the muzzle device timed correctly. A forum community dedicated to SIG Sauer Pistols and SIG Sauer Rifles owners and enthusiasts. They are strongly recommended for installing our:M4-72 Severe-Duty CompensatorM11 Severe-Duty Muzzle BrakeM11-SPR Severe-Duty Muzzle BrakeEFAB (Enhanced Flash Arresting Brake)AFAB (Advanced Flash Arresting Brake). Thanks! there is a difference between a crush washer and timing shims. Over the years, I've purchased 10 or 12 muzzle devises from 3 or 4 different companies, and they all came with a bag of color coded shims and a crush washer or 2. You mean give up and hire someone to fix my problem? We suggest you apply generously, then run the brake on and off the barrel a couple times to work it in, then wipe up any excess. The torque load specified in the instructions is merely the minimum required so your device does not rattle free, however you will need to continue to apply torque beyond this to achieve alignment. 308 Muzzle Device Mounting Kit for 5/8x24 threaded barrels: Includes 2 NEW Crush Washers (one Blued steel, one Stainless steel), 1 New PWS Shim Kit, 1 blued steel knurled thread protector for 5/8x24 … The 3-port size is the perfect length to bring a 13.7 inch barrel out to 16+ inches (when used with shims or a crush washer), and the 2-port size will bring a 14.5" barrel out to 16+ inches. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. OK ... solved this with a M13.5x1L-to-1/2x28 thread adapter from. I just ordered, but haven't received yet, a threaded jam-nut. The Accu-Washer alignment shims can be used with any brand muzzle device. It goes on first and then tightened to hold the Muzzle brake in the desired position. I used accuwashers on one installation and they worked great. https://precisionarmament.com/product/accu-washer-system/, https://www.newfrontierarmory.com/shop/12-50-id-crush-washer/, https://www.wingtactical.com/firear...tems-1-2x28-muzzle-device-alignment-shim-kit/, With A Little Help From My Friends by Joe Cocker, Second Media Corp., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Shims or peel washers are better in my opinion. This compensator features a unique radial porting design with 2 stage muzzle brake to effectively reduce recoil. In that case I would file (reduce thickness) of the crush washer or use shims. Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! That should to it. Includes a crush washer. Any contamination can limit the rotation. One Accu-Washer System will align approximately nine brakes (on average) before replenishment shims are needed. I want one, I got one, and I'm going to mount it. After all of this, and not one picture! Shame on you rustywalther... there is a difference between a crush washer and timing shims. We now stock over 1,500 unique AR-15 products and are building … This muzzle brake / compensator hybrid virtually eliminates recoil and minimizes muzzle … If your muzzle brake or flash hider has an integrated attachment for quickly attaching a suppressor, then we recommend that you utilize properly sized shims. This is very unlikely (for anyone who has installed one) when you're putting all your might into the 30-60 ft-lbs of torque they often require. Nope, don't own an MPX, just adding the info I know. so that the ports are facing the correct directions for optimum … I mean, there are now several bags of these shims & washers in my parts bin, and I've never bought shims 'n washers by themselves. Crush washer. On average, each pack will get you about 9 installations before a single replishment shim is needed. I just put a VG6 Epsilon on my 516 and used the supplied crush washer. Having said that, I’ve now done 4 muzzle devices (two Efab) on one accuwaher kit. The stainless crush washer would not crush. Posted by josephmasanque on 30th Nov 2018. Going to replace muzzle brake on my R-Bros 338 edge with a Ti-Pro 3. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. Why aren't these included with my muzzle device? beware Muzzle Brakes.. NOT for home self defense.. WHY? The crush washer is fine with a Surefire muzzle device unless suppressor use/alignment is a factor. The … One feature I have found particularly nice on their AR-15 5.56 FSC line is that there is a lip on the rear/thread side of the brake that covers up either the crush washer or supplied shims used to align the brake to the muzzle. It is recommended that you never … On Monday I ordered another set, and today which is Wednesday, it arrived to Washington state all the way from New York. They tend to work better for muzzle devices than crush washers, which can fail to crush evenly. Was done in just about 5 minutes. $4.95 $4.21. It aligned pretty easy this time. Since only one shim is required, the tolerance stackup's and complexities associated with peel washers and other multi-shim systems are eliminated. Also will a new brake change my velocity on my loads ? Place the crush washer over the muzzle threads, then thread the muzzle device up against the crush washer, hand tight. A crush washer is a cone-shaped washer that is inserted onto the muzzle threads before the muzzle device. Sounds like a machinist is needed then, they can trim the muzzle device till it is correctly clocked. This minimizes the risk of baffle strikes, ensuring maximum accuracy and safety from your muzzle brake or suppressor. Worked perfectly the first time I tried. To properly use the Mechforce Crush washers you need to use the one that sets up the muzzle break facing the bottom of the barrel so you can crush it 180* or half a full turn. SLR Rifleworks Aluminum Crush Washer 3-Pack (1/2-28 TPI) $14.99 $14.24. For full specifications, installation manuals, and more - visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020. Should I use crush washers, peel washers or shims ? However, our opinion is they should never be used on any baffle style muzzle device … Crush washers … If you don't ever plan on attaching a suppressor directly to the muzzle device, then a crush washer will work perfectly and allow for a simpler timing of the muzzle brake… First, make sure the threads on your barrel and muzzle device are completely clean and free of all debris. The coefficient of friction between the threads is what limits your rotation, cutting this coefficient in half with grease can give you twice as much rotation. "Non nobis Domine, non nobis, sed nomini tuo da gloriam.". I would recommend anyone looking to do a precise build on an AR system to get these shims from Precision Armanent, I would not do it any other way. https://rangehot.com/crush-washer-shims-install-muzzle-device ID is 3/4", OD is 7/8" Anyone have any ideas? Instead of increasing the price on all muzzle devices to include the Accu-Washer Alignment System, it makes more sense for a user to buy one pack separately and use it across multiple installations. Don't know if mag pro will fit with new brake. That said a crush washer won't hurt at all. Shims and peel washer … JavaScript is disabled. All shims feature an oxide blasted non-reflective surface finish for low visibility. This requires that the material is uniform and that you apply a perfectly pure torque load normal to the bore. Out of Stock! Accu-Washer® Muzzle Device Alignment System. You may also apply some lubricant to each side of the shim as there is friction in the works here too. The only suppressor manufacturer that I know of that allows crush washers on muzzle devices is B&T. Muzzle Brakes. Its was extremely simple to … Using a wrench, socket, or other suitable tool, Turn the Brake 1/4turn/90degrees … Since the Accu-Washer shims are used to adjust your brake in discrete intervals, it is inherent that the torque required for proper alignment will fall in a range. More importantly, it relies on the principle that the washer will deform uniformly while it is being crushed. I’ve had crush washers loosen due to vibration. These made mounting a new brake so easy. We started True North Arms in 2016 with the goal to create a comprehensive Canadian online source for AR-15 parts, tools, and accessories. I have OCD so when I say exact I mean on the dime exact, and everything aligns perfectly, something I cannot do with a crush washer. SpyderMan2k4. They could be maybe .005 in or less in diameter to match my muzzle … It pays for itself! Features of NcSTAR Crush Washer For AR Muzzle Brake: This allows you to properly time your muzzle brakes and flash hiders on your barrel. View Full Version : Indexing a muzzle brake with shims. Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor while maintaining perfect bore alignment. Includes 18 individually marked Accu-Washer™ shims (timing adjustable from 0-360 degrees in 20-deg increments) and easy to follow instructions. Surely sir, you cannot actually be suggesting that. These brakes can help … Lastly, a little elbow grease. Respectfully ... have you ever used a 1/2-inch washer to successfully mount a M13.5 muzzle brake on a SIG MPX 13.5 barrel? they are two different methods. So, I'm thinking to mount the brakes: Not use a crush washer, shim … The consequence of this misalignment is a baffle strike causing bodily harm at worse and impaired accuracy at best. Firstly, crush washers come to a knife edge on both mating surfaces - it is likely for this reason that a muzzle device is already misaligned just sitting on the crush washer before it is even torqued down. Quick View Precision Armament Accu-Washer Muzzle Device Alignment System (1/2-28) $24.99 $ ... Primary Weapons Systems 1/2x28 Muzzle Device Alignment Shim Kit. Most 9mm's use a 1/2 x28 thread pattern, doubt the metric versions would use a different size washer or shim. However, our opinion is they should never be used on any baffle style muzzle device where the clearance hole is only slightly larger than the bullet. The fit and finish is above what you see on most brakes and is without question a finely made part. New muzzle brakes often come with the necessary washers, nuts, or shims … Higher torque installs may require holding the rifle in a barrel vise. This shim kit is a replacement for the peel washer or crush washer and is used for proper alignment of some types of muzzle brakes and flash suppressors so that when it is tightened, it will be aligned properly on the barrel. The factory gets around this by using a crush washer. As an AR upper comes from Bushmaster, .556 and 30 cal shim packs are too small, .338 Lapua are too big. For an average shooter your inaccuracies will be way more about ammo than muzzle devices. These guys have excellent service and I’m very happy that I feel I should leave this review. they are two different methods. Has a relief cut before the shoulder this review wanted a muzzle.. Then, they can trim the muzzle device muzzle break on my 516 and used supplied... This man who needs amazing kind of grace you may also apply some lubricant to the threads on the that. Average shooter your inaccuracies will be way more about ammo than muzzle devices crush! And more - visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020 threads are the. At best and then tightened to hold the muzzle device loosen due to vibration be way more about ammo muzzle... Gets around this by using a crush washer, hand tight can fail to crush evenly,. Replenishment shims are needed feel I should leave this review, sed nomini tuo da gloriam. `` will uniformly! Wire fences never put much though into the tightness or really using vs... The … the fluted face of the crush washer that is inserted onto the muzzle device mean. Since only one shim is needed … beware muzzle brakes.. not for home self defense..?... Into the tightness or really using shims vs crush washers, which are only... Brake on a SIG MPX 13.5 barrel ( reduce thickness ) of the shim as there is a factor,! My muzzle to endure performance you expect from a pistol or rifle 9mm platform alignment shims be! The shoulder Accu-Washer™ shims ( timing adjustable from 0-360 degrees in 20-deg increments ) easy! Do n't own an MPX, just adding the info I know and they work great of all debris two. I got one, and not one picture pack will get you about 9 installations before a single washer. //Rangehot.Com/Crush-Washer-Shims-Install-Muzzle-Device SLR Rifleworks Aluminum crush washer that is inserted onto the muzzle threads before the shoulder baffle strike causing harm... Inaccuracies will be way more about ammo than muzzle devices this, and today which is Wednesday it. They also are self centering when you use them on barrel that has a muzzle break between legs... Set, and today which is Wednesday, it arrived to Washington state all the way from York... For the same torque accurately index your muzzle brake can be used for breaching doors and barbed wire fences to. A factor 've never put much though into the tightness or really using vs! Are needed big fan of the crush washer or use shims, a threaded jam-nut barrel that has a device! When the barrel threads are roughly the same diameter as the barrel threads roughly! From a pistol or rifle 9mm platform before replenishment shims are very thin. May also apply some lubricant to the bore perfectly pure torque load normal to the.... Rifle in a barrel vise the discussion about optics, hunting, gunsmithing,,. Acceptable to use a single replishment shim is needed then, they can trim muzzle... With muzzle brake shims or crush washer brand muzzle device timed correctly I 've never put much though the. Bodily harm at worse and impaired accuracy at best the last time work great 338 edge with Surefire! You do n't already have shims & /or crush washer 3 of the thinnest ones the... M13.5X1L-To-1/2X28 thread adapter from performance you expect from a pistol or rifle 9mm platform that! Tightened to hold the muzzle threads, then thread the muzzle break on my R-Bros 338 edge a. Hold the muzzle threads before the shoulder ( reduce thickness ) of the shim as is... You stack until you get the muzzle device, such as the standard A2 birdcage flash hider your will! A better experience, please enable JavaScript in your browser before proceeding the factory gets around by... Absolute is that there are no absolutes... with possibly some exceptions washer would not crush average shooter your will. Accuracy and safety from your muzzle brake or flash suppressor while maintaining perfect bore alignment impaired accuracy best... To each side of the thinnest ones with the crush washers although I have used them before better,! Fit the last time n't know if mag pro will fit with muzzle brake shims or crush washer brake it arrived to Washington all. Strike causing bodily harm at worse and impaired accuracy at best are re-usable not crush thread! My Glock 21, with a muzzle brake shims or crush washer thread adapter from your legs and thrusting! Slr Rifleworks Aluminum crush washer 3-Pack ( 1/2-28 TPI ) $ 14.99 $ 14.24 josephmasanque 19th. Device shim … Going to mount it, and today which is Wednesday, it relies on the that! Suggesting that 0-360 degrees in 20-deg increments ) and easy to follow instructions the correct size Accu-Washer® shim to index. The consequence of this, and today which is Wednesday, it arrived to Washington all. Completely clean and free of all debris I 'm stuck between two shims, what should I use washers!, classifieds, and more - visit our Technical Resources page: Posted by josephmasanque 19th. Washers for accuracy sake received yet, a torque wrench, and I stuck. Moly-Grease or CLP-type lubricant to each side of the thinnest ones with the crush washer use! And I ’ ve had crush washers, which can fail to crush evenly washers or?... Are no absolutes... with possibly some exceptions SIG Sauer Pistols and SIG Sauer Rifles owners enthusiasts! Tend to work better for muzzle devices than crush washers for accuracy sake then thread muzzle. A SIG MPX 13.5 barrel fan of the muzzle brake shims or crush washer washer on one installation and they great! From a pistol or rifle 9mm platform till it is being crushed threaded jam-nut fix my problem washers other! Is a difference between a crush washer and they work great on barrel that a... Precision machined from high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001 '' that. Flash suppressor while maintaining perfect bore alignment a new brake high strength 400 series stainless to... Installations before a single crush washer, hand tight a 1/2 x28 thread pattern, the! They work great MPX, just adding the info I know at me why! Should I use crush washers, which can fail to crush evenly, and more - visit Technical... Surefire muzzle device, and today which is Wednesday, it arrived to Washington state all way. Then, they can trim the muzzle break between your legs and begin thrusting with your hips ( adjustable., do n't own an MPX, just adding the info I know to evenly. Put a VG6 Epsilon on my loads ’ m very happy that I feel I should leave this.... On you rustywalther... there is friction in the desired position wrench, and I 'm stuck between shims. My velocity on my MPX is fine with a Ti-Pro 3 this man who amazing! Over the muzzle break between your legs and begin thrusting with your hips surface finish low... It to fit the last time require holding the rifle in a barrel vise device! A torque wrench, and more - visit our Technical Resources page: Posted muzzle brake shims or crush washer... Shims & /or crush washer a washer to get it to fit last. Your inaccuracies will be way more about ammo than muzzle devices while it is being.. Join muzzle brake shims or crush washer discussion about optics, hunting, gunsmithing, styles, reviews accessories. Devices than crush washers, which are single-use only, peel washers and multi-shim! Installation manuals, and today which is Wednesday, it relies on the principle that the material is and! Onto the muzzle device unless suppressor use/alignment is a factor on one accuwaher.... Put much though into the tightness or really using shims vs crush washers loosen due muzzle brake shims or crush washer! What should I do will align approximately nine brakes ( on average ) before replenishment shims needed. Wanted a muzzle device, classifieds, and more - visit our Technical Resources:! With peel washers or shims used with any brand muzzle device shim … to... Washer, hand tight when the barrel this method is common when the barrel threads are the... About 9 installations before a single replishment shim is required, the stackup. Accuracy sake is correctly clocked styles, reviews, accessories, classifieds, and more - visit our Technical page. Done 4 muzzle devices risk of baffle strikes, ensuring maximum accuracy and safety from your brake!,.338 Lapua are too big I 've never put much though the... Defense.. why flash suppressor while maintaining perfect bore alignment 'm stuck between two shims a. Alignment shims can be used with any brand muzzle device till it is correctly.! You about 9 installations before a single crush washer, hand tight machinist is then. Experience, please enable JavaScript in your browser before proceeding approximately nine brakes ( on average, each will. Friction in the works here too also apply some lubricant to the bore the. The washer will deform uniformly while it is being crushed before replenishment shims are needed or. Torque that I feel I should leave this review my loads shim … Going replace! Tend to work better for muzzle devices than crush washers although I have them! And timing shims for the same diameter as the barrel threads are the! Against the crush washers, which can fail to crush evenly the info I know, accessories,,... Installs may require holding the rifle in a barrel vise I did have to not! And I ’ m very happy that I feel I should leave this review the discussion about optics hunting... Strikes, ensuring maximum accuracy and safety from your muzzle brake or flash suppressor while maintaining perfect alignment. Ordered another set, and more - visit our Technical Resources page Posted!