The IMI Defense MRS Modular Rail System offers a lightweight, highly ergonomic, mission adaptable rail drop-on handguard.

IMI Defense MRS-C Polymer Modular Rail System Carbine Length for M4 / M16 (TAN)
Made of fiber enforced polymer compound
Slim cross-section
Highly modular with 3 optional different side rail sections in addition to full-length completion section of the bottom rail
Full length T-marked top rail
Heat deflecting Anodized Aluminum heat shields and ventilation slots along the barrel
Drops on with perfectly tight fit between Mil-spec Delta ring and Handguard cap
QD sling mount on the bottom front end

Length: 169mm