NcSTAR M4 Handguard Rail /Carbine Length

A truly mil-spec 1913 compliant rail, the Otis TRS. TRS stands for Turned Rail System, an engineered process that delivers the highest quality mounting system available today! Designed for AR-15 Carbines such as the M4 and provides a perfectly integrated platform to achieve your rifle's full potential 6061-T6 Aircraft grade Aluminum Rugged one piece design, 100% protection for the barrel and gas tube Product Description In an effort to help military customers measure and solve rail related problems, Otis not only developed qualification gauges for mil-spec 1913, but also conceived a new patent pending machining process. This resulted in a truly mil-spec 1913 compliant rail, the Otis TRS. Includes forend nut and locking ring, engineered to provide the most secure mount and solid foundation for all of your rifle accessories. Installation requires removal of the front sight, gas block, and muzzle break. Recommended installation by a qualified gunsmit.

Alternate Lookup: MARS