Battle Arms Development BAD-WH15-MLOK: The WORKHORSE M-LOK compatible rail system was designed to be a lightweight and slimline option to be used on MIL-SPEC carbines available on the market today. With M-LOK mounting options at the 3.6, and 9 o\'clock positions and skeletonized areas where M-LOK is not used, this handguard not only offers function but shaves weight where it is not needed. We still maintain 1913 MIL-SPEC Picatinny rail at the 12 o\'clock position that we \"notch cut\" to match Battle Arms upper receiver and reduce weight again. The WORKHORSE offers everything you need and nothing you don\'t.