Whats in the Box CMMG Banshee MK4 5.56mm AR-15 Pistol with Armor Black Cerakote Finish (1) 30-Round Magazine Cable Lock Owners Manual You asked and CMMG listened. Available with a 10.5 barrel, this is the shortest 5.56mm BANSHEE CMMG has ever offered and makes for a great choice for anyone looking for a compact backpack/truck gun in 5.56mm. If capability is what you re after, then worry no more; Built on the Mk4 platform, this BANSHEE AR15 lower receiver group will work with any standard AR15 pattern upper group as well as all of CMMG s conversion magazines (w/ matching upper group). Available in a variety of Cerakote finish options (this one being Armor Black Cerakote), the BANSHEE series represents the most innovative AR pistols and SBRs available today. From the quick deploying RIPBRACE to the stylized receivers and EML handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. With 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, you ll always have enough space for those must-have accessories. Firearm Features ZEROED Drop-In Trigger ZEROED Trigger Guard ZEROED 60 /90 Ambi Safety ZEROED AR15 Ambi Charging Handle ZEROED Ambi Mag Catch ZEROED Extended Mag Release Button ZEROED AR15 Bolt Catch ZEROED AR15 Polymer Dust Cover ZEROED Linear Compensator Firearm Specifications Manufacturer: CMMG Model: 55A420A-AB Caliber: 5.56mm Barrel Length: 10.5" Twist Rate: 1:7 Overall Length: 26" Finish: Armor Black Cerakote Grips: ZEROED Pistol Grip Sights: None, Front/Rear Picatinny Rail Magazine Capacity: 30-Rounds Additional Features: CMMG EML9 M-Lok Handguard