The AR-9 Piranha 9mm Pistol Kit is one of the latest additions to the CBC 9mm line-up. This kit includes everything you need to build the Piranha except for a stripped lower receiver. The Piranha features a 5.5″ barrel wrapped in a 4″ Keymod rail and capped with a thread protector for enhanced aesthetics. The foundation of this pistol kit is built upon a MIL-SPEC type III upper receiver with a hard coat anodized finish and machined from 7075-T6 forged aluminum. This AR Pistol Kit features a SB Tactical SBA3 5-position adjustable pistol brace for enhanced versatility.