Troy Alpha Rail 15-Inch Black

Utilizes a new low-profile locking mechanism which offers unparalleled strength and stability. Comes with two 2-inch and one 4.2 inch detachable rails and all mounting hardware. Machined from hardened aircraft aluminum and stainless steel components and finished in MIL-SPEC Type III Hard Coat Anodizing. Works with standard AR15/M16 barrel nut. No barrel nut included. Made in the U.S.A. Note: Alpha rails do not work with the TRX barrel nut or TRX barrel wrench.