Equipped with a 5" barrel, this BANSHEE(TM) is one of the shortest 9mm pistols CMMGoffers. What sets this BANSHEE apart is the Mk17 platform lower which is designed to use Sig Sauer P320/M17/M18 pattern magazines. Being able to use handgun magazines in a pistol caliber carbine or personal defense weapon allows shooters to use their existing collection of magazines, mag pouches, and other accessories.Available in a range of cerakote finishes, the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPBRACE(R), to the stylized receivers and EML(TM) handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. New EML4 handguards feature M-LOKslots at 3, 6, & 9 o'clock positions and a full length picatinny top rail for accessories as well as an integrated handstop.Radial Delayed Blowback(TM) Operating SystemOriginally developed for the .45 ACP MkG platform, CMMG has adapted our Radial Delayed Blowback system across our pistol caliber lineup to create pistols and rifles with a softer recoil impulse and reduced bolt weight compared to traditional straight blowback systems. Check out our CMMG Resources article & video to learn more about what sets Radial Delayed Blowback apart.Radial delayed blowback was an advancement from straight blowback. Compact action radial delayed blowback was an advancement to the original radial delayed blowback. This (fixed ejector on radial delayed blowback) is a continued advancement bringing new technologies to the original platform.Mk17 ZEROED parts and accessories - Quality comes standardThe AR platform is well known for its capability for customization but picking the right parts doesn't have to be a nightmare of homework. Everything from the RIPBRACE to the full kit of ZEROED parts and accessories are made here in the USA with quality and attention to detail that is second to none and Each BANSHEE Comes Equipped With A Slew Of ZEROED Parts Standard, Including:ZEROED Pistol GripZEROED Drop-In TriggerZEROED 60deg/90deg Ambi SafetyZEROED AR15 Ambi Charging HandleZEROED AR15 Bolt CatchZEROED AR15 Polymer Dust CoverZEROED Linear Compensator 9mmLifetime Quality GuaranteeWe aim to please, that's why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.