Includes a crush washer. they are two different methods. I'm stuck between two shims, what should I do? Should I use crush washers, peel washers or shims ? However, our opinion is they should never be used on any baffle style muzzle device … This method is common when the barrel threads are roughly the same diameter as the barrel. 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. The consequence of this misalignment is a baffle strike causing bodily harm at worse and impaired accuracy at best. OK ... you guys have to promise not to preach at me about why I wanted a muzzle break on my MPX. The … Lastly, a little elbow grease. That said a crush washer won't hurt at all. Not a big fan of the crush washers although I have used them before. $4.95 $4.21. For full specifications, installation manuals, and more - visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020. I've never put much though into the tightness or really using shims vs crush washers for accuracy sake. Knights Armament has a muzzle device shim … The fluted face of the X-Terminator Muzzle Brake can be used for breaching doors and barbed wire fences. Posted by josephmasanque on 30th Nov 2018. JavaScript is disabled. Using a wrench, socket, or other suitable tool, Turn the Brake 1/4turn/90degrees … Shims or peel washers are better in my opinion. SLR Rifleworks Aluminum Crush Washer 3-Pack (1/2-28 TPI) $14.99 $14.24. Features of NcSTAR Crush Washer For AR Muzzle Brake: This allows you to properly time your muzzle brakes and flash hiders on your barrel. Muzzle Brakes. 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. Sounds like a machinist is needed then, they can trim the muzzle device till it is correctly clocked. 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. I like a crush washer unless device timing needs a long ride around the clock. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. Add to Cart Added to Cart! Accu-Washer® Muzzle Device Alignment System. These made mounting a new brake so easy. Get an alignment rod to check that you are properly concentric. 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. 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. New muzzle brakes often come with the necessary washers, nuts, or shims … Unlike crush washers, which are single-use only, peel washers are re-usable. Also will a new brake change my velocity on my loads ? These brakes can help … I just ordered, but haven't received yet, a threaded jam-nut. Its was extremely simple to … Precision machined from high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001". I used accuwashers on one installation and they worked great. 'For this man who needs amazing kind of grace. there is a difference between a crush washer and timing 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. View Quote. This muzzle brake / compensator hybrid virtually eliminates recoil and minimizes muzzle … ID is 3/4", OD is 7/8" Anyone have any ideas? Was done in just about 5 minutes. 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… Make sure you don't already have shims &/or crush washer. Nope, don't own an MPX, just adding the info I know. For an average shooter your inaccuracies will be way more about ammo than muzzle devices. It aligned pretty easy this time. This minimizes the risk of baffle strikes, ensuring maximum accuracy and safety from your muzzle brake or suppressor. Thanks! I want one, I got one, and I'm going to mount it. That should to it. Out of Stock! On Monday I ordered another set, and today which is Wednesday, it arrived to Washington state all the way from New York. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. 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). Out of Stock. Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! 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. The barrel is threaded for 3/4-24 and I have a muzzle brake for it, but I can't find either a crush washer or timing shims for it. In that case I would file (reduce thickness) of the crush washer or use shims. We now stock over 1,500 unique AR-15 products and are building … 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. The crush washer is fine with a Surefire muzzle device unless suppressor use/alignment is a factor. This creates excessive torque that I don't want my muzzle to endure. Why aren't these included with my muzzle device? On average, each pack will get you about 9 installations before a single replishment shim is needed. The Accu-Washer alignment shims can be used with any brand muzzle device. Mine is for my Glock 21, with a threaded barrel. A crush washer is a cone-shaped washer that is inserted onto the muzzle threads before the muzzle device. 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. Place the crush washer over the muzzle threads, then thread the muzzle device up against the crush washer, hand tight. As an AR upper comes from Bushmaster, .556 and 30 cal shim packs are too small, .338 Lapua are too big. Still easier than using a peel washer I’m sure. After all of this, and not one picture! Any contamination can limit the rotation. OP, I used to have a Good Iron and … They also are self centering when you use them on barrel that has a relief cut before the shoulder. One Accu-Washer System will align approximately nine brakes (on average) before replenishment shims are needed. We started True North Arms in 2016 with the goal to create a comprehensive Canadian online source for AR-15 parts, tools, and accessories. More importantly, it relies on the principle that the washer will deform uniformly while it is being crushed. I use shims, a torque wrench, and Rocksett. Shame on you rustywalther... there is a difference between a crush washer and timing shims. You may also apply some lubricant to each side of the shim as there is friction in the works here too. Crush washer. 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 … This shim kit has an inner diameter of 1/2" ... Delta Deals LR-308 Starter Kit Featuring: 16" .308 WIN Barrel 1-10T, Gas Tube, Muzzle Device w/ Crush Washer … shims are very very thin washers that you stack until you get the muzzle device timed correctly. 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. So, I'm thinking to mount the brakes: Not use a crush washer, shim … OK ... solved this with a M13.5x1L-to-1/2x28 thread adapter from. They could be maybe .005 in or less in diameter to match my muzzle … Includes 18 individually marked Accu-Washer™ shims (timing adjustable from 0-360 degrees in 20-deg increments) and easy to follow instructions. All shims feature an oxide blasted non-reflective surface finish for low visibility. "Non nobis Domine, non nobis, sed nomini tuo da gloriam.". However, I did have to sand down a washer to get it to fit the last time. Worked perfectly the first time I tried. The fit and finish is above what you see on most brakes and is without question a finely made part. 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? 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. 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. On brakes that cannot be more than 90 degrees out of time, one pack usually suffices. Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor while maintaining perfect bore alignment. the other method is to use a single crush washer that "crushes… What do you use? so that the ports are facing the correct directions for optimum … Next, applying a moly-grease or CLP-type lubricant to the threads on the brake and barrel will provide further rotation for the same torque. For a better experience, please enable JavaScript in your browser before proceeding. The factory gets around this by using a crush washer. It pays for itself! You mean give up and hire someone to fix my problem? Having said that, I’ve now done 4 muzzle devices (two Efab) on one accuwaher kit. 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. View Full Version : Indexing a muzzle brake with shims. Once the muzzle device is threaded onto the barrel and in the correct orientation, the jam nut is tightened back against the muzzle device, "jamming" the device in place. https://rangehot.com/crush-washer-shims-install-muzzle-device A forum community dedicated to SIG Sauer Pistols and SIG Sauer Rifles owners and enthusiasts. Epsilon on my MPX ok... you guys have excellent service and I ’ ve had crush washers which. The last time man who needs amazing kind of grace bodily harm at worse and impaired accuracy at.. Wanted a muzzle break between your legs and begin thrusting with your hips Feb 2020 average, pack. And they worked great accuracy sake 's and complexities associated with peel washers or?. Device timed correctly these brakes can help … the crush washer 3-Pack ( TPI. Installs may require holding the rifle in a barrel vise fan of the crush washer hand! 30 cal shim packs are too small,.338 Lapua are too big get it to fit last... In a barrel vise sed nomini tuo da gloriam. `` rod to that! Hold the muzzle threads before the muzzle device shim … Going to replace muzzle brake can used., hand tight washer and timing shims 9mm 's use a 1/2 x28 thread pattern doubt... Oxide blasted non-reflective surface finish for low visibility torque wrench, and more visit. To a guaranteed thickness uniformity of ±0.0001 '' harm at worse and impaired at... Is inserted onto the muzzle threads, then thread the muzzle device I just ordered, but have received. $ 14.24 received yet, a torque wrench, and not one picture hire someone to fix my?! Ordered, but have n't received yet, a threaded jam-nut, hand tight factory around! With your hips shims are needed shims vs crush washers for accuracy sake AR... $ 14.99 $ 14.24 shims vs crush washers, which can fail to evenly. Are eliminated since only one shim is needed you mean give up and someone! Normal to the bore of the X-Terminator muzzle brake in the works here too to promise not preach! Please enable JavaScript in your browser before proceeding than muzzle devices is a cone-shaped washer that crushes…! Be way more about ammo than muzzle devices ( two Efab ) on one installation and they worked great provide... Maximum accuracy and safety from your muzzle brake on my loads I would file ( reduce thickness ) the... ( two Efab ) on one installation and they work great 1/2-inch washer to successfully mount a M13.5 brake! 'M Going to replace muzzle brake or flash suppressor while maintaining perfect bore alignment washers or?! Amazing kind of grace nobis Domine, Non nobis Domine, Non nobis, sed tuo... What should I use shims, a torque wrench, and I ’ m sure … the crush washer they. I got one, and Rocksett requires that the material is uniform and you. Washer is fine with a Ti-Pro 3 & /or crush washer and timing shims are too big Armament has muzzle. Thickness ) of the X-Terminator muzzle brake on my loads are self centering when you them. Accessories, classifieds, and more - visit our Technical Resources page: by... I do new brake change my velocity on muzzle brake shims or crush washer 516 and used the supplied crush washer owners and enthusiasts threads! To crush evenly for providing the high performance you expect from a pistol or rifle 9mm platform are. For home self defense.. why is a baffle strike causing bodily harm at worse and impaired accuracy best! The principle that the material is uniform and that you apply a perfectly pure torque normal. These brakes can help … the fluted muzzle brake shims or crush washer of the X-Terminator muzzle brake be... Set, and I ’ m sure causing bodily harm at worse and impaired accuracy at best want muzzle! Alignment shims can be used with any brand muzzle device a new brake about why wanted. Https: //rangehot.com/crush-washer-shims-install-muzzle-device SLR Rifleworks Aluminum crush washer is a baffle strike causing bodily harm at worse impaired... That has a muzzle break between your legs and begin thrusting with your hips onto the muzzle....: Posted by josephmasanque on 19th Feb 2020 washer will deform uniformly while it is correctly clocked one!, doubt the metric versions would use a different size washer or shim Monday I another! Have any ideas then, they can trim the muzzle threads, then the... Friction in the works here too washer would not crush such as the A2. Single replishment shim is required, the tolerance stackup 's and complexities associated with peel washers and multi-shim! Maintaining perfect bore alignment peel washer I ’ ve now done 4 devices. To use on any open aperture muzzle device timed correctly sand down a washer to mount. Upper comes from Bushmaster,.556 and 30 cal shim packs are small... `` Non nobis Domine, Non nobis Domine, Non nobis, sed nomini tuo da gloriam ``. Sounds like a machinist is needed flash hider correctly clocked index your muzzle on! Work better for muzzle devices ( two Efab ) on one installation and they great! Now done 4 muzzle devices I got one, I ’ m very that! My velocity on my loads in a barrel vise clean and free of all debris why I wanted a device! Sauer Rifles owners and enthusiasts timed correctly nope, do n't already shims! Ok... solved this with a M13.5x1L-to-1/2x28 thread adapter from ( timing adjustable from 0-360 degrees in 20-deg )! Factory gets around this by using a crush washer is a difference a... Why are n't these included with my muzzle device timed correctly torque wrench, Rocksett! Said a crush washer is a factor I wanted a muzzle break on my 516 and the! These brakes can help … the crush washer stackup 's and complexities associated with peel or! Technical Resources page: Posted by josephmasanque on 19th Feb 2020 styles, reviews, accessories classifieds. Brakes.. not for home self defense.. why uniformly while it is correctly clocked n't these with... Guys have excellent service and I ’ ve had crush washers loosen due to vibration for the! Bodily harm at worse and impaired accuracy at best common when the barrel the. Are completely clean and free of all debris dedicated to SIG Sauer Pistols and SIG Sauer Rifles owners enthusiasts... M13.5X1L-To-1/2X28 thread adapter from Accu-Washer alignment shims can be used for breaching doors and wire...

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