The Precision Armament AccuWasher AW625 Gen2 Shim Kit (brand part no. A00520) gives shooters running 5/8-24 threaded barrels a clean way to clock a muzzle brake or compensator without cutting a crush washer. Built with a 0.825-inch bore, it is sized for the larger threading common on .30-caliber and similarly proportioned rifles. The kit’s thin, stackable shims peel away one layer at a time, letting you fine-tune rotational alignment in small increments until the device sits exactly where it should. Precision Armament built the AccuWasher line around the same attention to timing and torque that goes into its own muzzle brakes, so the AW625 pairs naturally with its devices as well as other 5/8-24 muzzle hardware in this bore size.

Key Specifications

• Threaded for 5/8-24 barrels, a common muzzle thread pitch on larger-caliber rifles.
• Sized with a 0.825-inch bore, matching it to the intended muzzle device and barrel diameter.
• Built as a Gen2 design, Precision Armament’s current-generation AccuWasher shim system.
• Uses peelable, stackable shims for fine, incremental rotational adjustment.
• Times a muzzle brake or compensator to correct rotational alignment without cutting a standard crush washer.

Frequently Asked Questions

What thread pitch is the AW625 built for? It is threaded for 5/8-24 barrels with a 0.825-inch bore.

How does the shim kit time a muzzle device? Thin shims are peeled away one at a time until the device rotates into correct alignment, without cutting a crush washer.

Buy the Precision Armament AccuWasher AW625 Gen2 Shim Kit

Get a 5/8-24 muzzle device timed correctly without guesswork or a cut-down crush washer. Order the AccuWasher AW625 from Precision Armament in our gun parts category, shipped fast from our Lubbock, Texas gun shop.