LanTac Crush Washer Features The LanTac crush washer is purpose built for 14mm threaded AK-47 barrels giving installers the compressible spacer needed to properly time a flash hider or compensator to the muzzle. As the washer is crushed during torquing it takes up the thread gap so the muzzle device lands in the correct clocked orientation without over- or under-tightening the barrel threads. This precise fit helps ensure the muzzle device sits flush and secure reducing the chance of loosening under recoil. A properly seated crush washer is a small but essential part of a safe correctly aligned muzzle device installation. Because a crush washer is designed for one-time use LanTac recommends installing a fresh washer with every muzzle device change rather than reusing a previously crushed one. Reusing a washer multiple times reduces its ability to compress and hold the device securely which can allow it to shift out of alignment over time. This washer is manufactured in the USA to consistent dimensional standards giving AK-47 owners a dependable readily available replacement part. Keeping a spare on hand makes future muzzle device swaps quick and straightforward for any AK-pattern rifle owner. LanTac Crush Washer Specifications Brand: LanTac Type: Crush Washer Thread Pattern: 14mm Compatible Hosts: AK-47 Country of Origin: Made in the USA Available At: GrabAGun