Broken Arrow tests what we believe to be the Nuprol Matrix MGL 40mm Launcher, which uses the 40mm gas grenade shell, which he says is every CQB enthusiast’s nightmare. Well, just imagine a shower of BBs aimed at you in a QCB game. The NUPROL Matrix MGL, a grenade launcher with a revolver-like design, can swiftly discharge the contents of up to six 40mm MOSCART grenade shells. This design is inspired by the real steel Milkor M32 MGL. While the stock still attaches to the M4/AR-15 buffer tube, the Matrix comes pre-installed with a VFC QRS stock. This A-frame style design reduces snagging and includes QD sling sockets on both sides.