The Workhorse M-LOK compatible rail system was designed to be a lightweight and slimline option to be used on Mil-Spec AR-15 carbines. 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. A full length 1913 mil-spec Picatinny rail at the 12 o'clock position has been "notch cut" to match the BAD upper receiver and further reduce weight.