Andro Corp ACI-15 Halo Features The Andro Corp Industries ACI-15 Halo pairs the dynamic power of the 5.56 NATO cartridge with the proven HALO series configuration built around a pistol length gas system and a .750 low profile gas block for reliable cycling in a compact platform. An M16 bolt carrier group and M4 feed ramps support dependable function across a range of 5.56 ammunition. The barrel carries a black nitride finish for corrosion resistance and a 1:7 twist rate suited to a wide range of bullet weights. A QPQ corrosion resistant finish on key components adds an additional layer of protection for a pistol intended for hard use. The 9 inch M-LOK handguard gives plenty of real estate for lights lasers and other accessories while the full length Picatinny rail on the 7075 T6 mil spec upper accepts a wide range of optics. The BATTLELINK Minimalist Pistol Stabilizer keeps the overall footprint compact without sacrificing a stable point of contact for the support arm. An ambidextrous safety selector and a Mil-Spec lower parts kit round out a build focused on reliability under hard use. At 5.8 pounds and finished in black throughout the ACI-15 Halo ships complete with a 30 round magazine ready to run straight out of the box. Andro Corp ACI-15 Halo Specifications Manufacturer: Andro Corp Model: ACI-15 Halo Caliber: 5.56 NATO Capacity: 30+1 Action: Semi-Auto Barrel Length: 10.5 Barrel Finish: Black Nitride Barrel Material: Chrome Moly Vanadium Twist Rate: 1:7 Thread Pattern: 1/2x28 Receiver Finish: Black Anodized Receiver Material: Aluminum Handguard: M-LOK Grips: A2 Stock Description: MPS Pistol Brace Safety: Safety Selector Overall Length: 25 Weight: 5.8 lbs Available At: GrabAGun