The crush washer for AR10 and AR15 rifles chambered in 7.62 mm/.308 is a simple but essential component. Designed for barrels with a 5/8x24 thread, it ensures the muzzle device seats correctly, stays secure, and delivers reliable performance even under heavy use.
The washer acts as a safeguard during installation of a compensator or flash suppressor. It guarantees proper alignment and prevents the muzzle device from loosening, even after extended shooting sessions.
Each crush washer is intended for single use only. This ensures correct torque and orientation every time. Reuse would compromise its function, so it’s always best to replace it with a new one.
The 5/8x24 specification matches the standard threading of AR10 barrels in 7.62 mm/.308, making it universally compatible with common models. It can also be used on AR15 rifles chambered in this caliber.
Installation is quick and reliable—place the washer on the thread, mount the muzzle device, and tighten to the proper angle. The crush washer ensures precise fitment without unnecessary complications.
Manufactured in the USA with durable materials, this washer upholds Lantac’s reputation for quality and reliability. A small but critical part that keeps your rifle operating as it should.