Available for all M16/M4 weapon systems with the original factory barrel nut.
Compatible wiht M203 and HK AGL M grenade launchers.
Acceots a Q.D. 360 push-button sling swivel.
Provides uninterrupted rail extension.
Replaces the factory delta ring.
Installation does not require removal of the front sight or barrel.
Machined from hardened aircraft aluminum with stainless steel components
Finished in MIL-SPEC hardcoat anodizing.