ALG Defense EMR V3X 15" Handguard The V3X M-LOK support allows the user to mount an array of third party accessories and customize their weapon platform to suit their needs. Magpul M-LOK accessories can be attached along the length of the rail at 2, 4, 6, 8 and 10 o'clock positions. The primary difference of the EMR V3X is its full-length M1913 picatinny rail at the 12 o'clock position. The machined M1913 section is ideal for attaching front sights, lasers, IR illuminators, lights and any other optic or sling related M1913 compatible accessory. Mfg: Geissele Automatics