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AccuWasher® Gen 2 – The Ultimate Muzzle Device Alignment System
The AccuWasher® Gen 2 Muzzle Device Alignment System by Precision Armament offers a smarter, safer way to install muzzle brakes, compensators, and suppressor mounts. Say goodbye to unreliable crush washers and fussy peel shims — this single-shim solution delivers precise, repeatable alignment every time.
Machined to exacting tolerances, each AccuWasher is lathe-turned on both faces for guaranteed flatness and thickness consistency. The result? Perfect muzzle device timing without guesswork, even under torque loads of 30–60 ft-lbs.
Designed for professionals and serious shooters, the Gen 2 system includes thinner shim profiles, new size compatibility, and optional adapters to fit heavy barrels and varied thread pitches. Whether you're mounting a brake on your AR-15 or aligning a suppressor on a custom build, this system delivers clean aesthetics and unmatched reliability.
🔧 Key Features:
- Single-shim system ensures better alignment than crush or peel washers
- Machined flat surfaces for consistent torque application
- Compatible with standard and heavy barrel threads
- Easy-to-use timing chart included
- Improves accuracy and prevents baffle strikes
- Available in multiple shim packs and adapter kits
Perfect your installation with the AccuWasher Gen 2 — engineered for precision, trusted by gunsmiths.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.
Customer Ratings & Reviews
Ratings Snapshot
out of 5
5
(21)
4
(0)
3
(0)
2
(0)
1
(0)
Would recommend this product.
100%
out of 5
5
(21)
4
(0)
3
(0)
2
(0)
1
(0)
Would recommend this product.
100%
Best system out there!!!!!!
Soldier
Location: Texas
Date:
March 21, 2018
Love the Accu washer system, so easy to use. I would definitely recommend this to somebody.
Verified Buyer
Recommended
Perfect
Jt
Location: Modesto, ca
Date:
February 26, 2018
Perfect for muzzle alignment
Verified Buyer
Recommended
Tameing of the beast.
Lynn Loy
Location: Green country okla.
Date:
January 20, 2018
Ordered this for an Adams Arms SF308. Ive had 2 rght shoulder R cuff surgerys so I was looking for a little help on the 308 kick. Recieved great customer service and fast shipping. Installed very easy with the acu-washer setup. Looks great like an old panzer tank muzzle. Really cool. Shooting the 308 was the best part. I was amazed at the difference. Its a joy to shoot now. It seems to be a little louder but thats just the nature of the beast. Overall great purchase.
Verified Buyer
Recommended
Works nicely
Gb
Location: Palm Beach fl
Date:
December 14, 2017
Well made. Easy to understand instructions.
Verified Buyer
Recommended
not used yet
AMP
Location: AL
Date:
December 12, 2017
item was pricey but recomended not used yet
Verified Buyer
Recommended
M4-72 SEVERE MUZZEL BRAKE - 308
Lance
Location: Manassas, Virginia
Date:
July 19, 2017
Brake works just as advertised, a little on the loud side, I installed mine on a 6.8 SPCII, also got the washer spacer set and glad I did, made installation easy.
Verified Buyer
Recommended
It works
Anonymous
Location:
Date:
March 14, 2017
It works like it says it will.
Verified Buyer
Recommended
Best product for indexing muzzle devises period!
Rob
Location: Minnesota
Date:
December 20, 2016
Don't bother with crush or peel washers...junk in comparison. These are the only things I will use for muzzle devices on any future build, no question.
Verified Buyer
Recommended
Precision Armament Accu-Washer Muzzle Device Alignment System
kpwarwick
Location: warwick, ny
Date:
March 23, 2016
excellent product!!! easy to use!
Verified Buyer
Recommended
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