The Aim Sports Crush Washer (part no. ACWA2) is what gets a flash hider or muzzle brake to land dead vertical or horizontal on an AR-10/.308 barrel instead of stopping wherever the threads happen to run out. Aim Sports machines it from steel to fit most .308-pattern barrel profiles, and crushing it down under torque is what lets you index the muzzle device precisely without shimming. With 12 pieces per pack, you’ve got enough on hand to outfit several builds or keep spares for the next time a device gets swapped.

Key Specifications

• Sized for AR-10/.308 pattern barrels.
• Machined from steel for a durable, crush-fit washer.
• Fits most .308-pattern barrel profiles.
• Ensures proper indexing of a flash hider or muzzle brake.
• Sold as a 12-piece pack.

Frequently Asked Questions

What barrels does this washer fit? Most AR-10/.308-pattern barrel profiles.

How many washers come in a pack? Twelve.

Why do I need a crush washer? It’s what lets you torque a flash hider or muzzle brake to spec while still landing it indexed correctly.

Buy the Aim Sports AR-10/.308 Crush Washer, 12-Pack

A muzzle device that won’t index right at full torque usually comes down to the wrong washer, and this 12-pack keeps you from ever being short one. Order it from our Lubbock, Texas gun shop and it ships fast to your door, along with more AR muzzle devices.