The hunt for your next personal defense weapon is over. Chambered in 5.7x28mm this Mk57(TM) BANSHEE(TM) utilizes an 8" barrel to maximize the full potential of the 5.7x28mm round as a close-range personal defense caliber. Gun comes with Tail Hook Arm Brace, Aero Precision Scope Mount, Hiperfire Hyper Touch EclipseTrigger, Vortex Strike Eagle Scope 1-6X24, and ATN Flash Light. Perfect for making an SBR.