Interchangeability matters, that’s why the Mk57 is not only chambered in the same caliber, 5.7x28mm, as other popular PDWs and pistols, but the BANSHEE Mk57 SBR uses FN Five-seveN pattern magazines. Not only do shooters get more ways to use their mags, the Mk57 still brings the full set of AR15 features, making rifle operation second nature. With 5” barrel this is the smallest Mk57 SBR CMMG has to offer. Available in a range of cerakote finishes, the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPSTOCK, to the stylized receivers and EML handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. New EML4 handguards feature M-LOK slots at 3, 6, & 9 o’clock positions and a full length picatinny top rail for accessories as well as an integrated handstop.