LWRC IC DI M-LOK. Direct Impingement Done Right. The LWRC Di is made with the same craftsmanship and design excellence that comes with every LWRC firearm and now available with LWRC specified M-LOK Rail. Built from the ground up to be more than just another direct impingement rifle, the LWRC Di delivers the quality every rifle enthusiast demands with innovation that’s expected from LWRC. High Performance features like fully ambidextrous controls, monoforged upper receiver with modular M-LOK one-piece free float rail, LWRC Cold Hammer Forged Nicor-treated spiral fluted barrel.