The Centurion Arms CMR (Centurion Modular Rail) is a lightweight rail system which uses a simple, slick design and proprietary barrel nut.
The Centurion CMR rail features 4 built in QD sling swivel sockets with limited rotation on the front and rear, left and right side of the rail. This is a free floating rail system, which enhances accuracy and allows installation of aiming lasers, optics, and backup sights. With steel thread inserts along the rail, users can easily attach CMR specific accessories to the rail with speed and ease: no difficult to handle backing plates required.
This is the 14" model designed for use with barrels with low profile gas blocks.