CMMG 57A9A0FAB: Built on the Mk57 platform, this Banshee accepts FN Five-seveN pattern magazines and features an intuitive oversized mag release. Features EML handguards, 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; Radial Delayed Blowback operating system; full kit of Zeroed parts including: pistol grip, drop-in trigger, 60/90 degree ambi safety, linear compensator 9mm, AR15- ambi charging handle, bolt catch and polymer dust cover. Includes 20rd ProMag magazine.