A light-weight polymer handguard, the PKMR runs reinforced KeyMod interface slots on three sides(10:30, 1:30 and 6:00 o'clock) creating a secure platform for user placed weapon lights and vertical grips. Compatible with AR15 carbines featuring a Mil-spec front sight base and handguard cap, the PKMR is a "drop in" replacement handguard that is easy to install and interfaces with a wide selection of AR15 carbines available today.Features: Manufactured from aluminumIt is lightweight yet durableA proprietary patent pending mounting, indexing and lock up system that mitigates 12 rail movement under heat generated from the barrel nutThe KMR Alpha is hardcoat anodized for corrosion resistance as well as to maintain a non-reflective finishThe BCM KMR Alpha also allows for a larger range of modularity offering 4 different offset mounting positions between traditional 3,6,9 and 12 positionsHandguard flares forward (towards muzzle end) at the 3 and 9 O'clock positions approximately 1/4 inches