The Samson SX Series features a free-floating AR-15 rail system. Its sleek profile creates a comfortable feel to a wide range of shooters, regardless of your application. The SX system creates a solid extension of the upper receiver with the benefits of rapid and easy installation thanks to the pre-installed, captured clamping system and Samson barrel nut. The SX Series features an integrated QD mount whereas the SXS Series offers a slick-side. 

Includes: Hex wrench and barrel nut wrench.