The Mk4 platform this BANSHEE is built on has a standard AR15-pattern lower receiver and utilizes our 9mm AR conversion magazines. While not only having the same manual of arms as any AR15, you can convert your existing stash of PMAGs to 9mm using our 9 AR conversion adapters. From the quick deploying RIPBRACE; EML handguard; full-length M-LOK slots on both sides and the bottom of the handguard as well as M-LOK between the top Picatinny rail sections.