CAA Command Arms M4S1 Polymer AR15 Forearm EMA Handguard
M4S1 is a 3 Rail Customizable Picatinny Hand Guard System. Combines a Customizable Rock Solid Mounting Platform, with an Easy Installation. Pre-installed Short Bottom Rail for a Smooth Grip Region near the rifle or switch to Included Full Length Bottom Rail. First lightweight polymer handguard designed to withstand the extreme operating temperatures of a gas piston system
This is the first lightweight polymer handguard designed to withstand the extreme operating temperatures of a gas piston system. This extreme heat resistance is achieved by manufacturing the M4S1 from a proprietary heat resistant polymer, including heat shields and providing significant upper and lower handguard venting in the design. The M4S1 also works with standard direct gas operating systems.
The M4S1 includes two interchangeable lower rails of 4” & 1.75” lengths. The this allows the operator to quickly change rails based on mission need. The two 1.75” side rails are removable if not required. Even with the side rails attached there is enough room left on the contoured handguard for your hand to hold it comfortably. An optional 9” long aluminum top rail attaches to the handguard and flat top rail providing a super stable platform for mounting optics and sights.