AR-15 Pro Series 12.5", .223Rem, Black

Cobalt Kinetics AR-15 Pro Series 12.5" is a modern semi-automatic rifle chambered in .223 Rem (5.56×45mm NATO), designed with an emphasis on accuracy, reliability, recoil mitigation and ambidextrous operation. Both the upper and lower receivers are manufactured from Cobalt Kinetics 7075-T6 billet aluminum. The upper receiver incorporates a reverse-threaded barrel nut system designed to provide even barrel seating and more precise barrel-extension tolerances. The free-floating handguard is secured to the upper receiver using a four-point, eight-screw mounting system.

This configuration features a 12.5" (31.8 cm) Rosco Manufacturing barrel with a 1:8" twist and a Cobalt RCB 2.0 muzzle device. The 11.8" Cobalt Kinetics 7 Side MLOK handguard provides four QD mounting points. The rifle is equipped with an M16 Nitride MPI/HPT bolt, Radian Raptor LT charging handle and Geissele G2S trigger. Controls include an ambidextrous safety and ambidextrous magazine release.

The stock assembly consists of a B5 Systems Bravo stock, Vltor five-position buffer tube and adjustable Cobalt Kinetics Pro Buffer. The rifle also features a B5 Systems Type 23 P-Grip and a Cobalt Kinetics Low Profile Fixed gas block. Overall length is 75.5–84.5 cm depending on configuration, with a height of 18.5 cm, width of 6.5 cm and weight of 2.903 kg including magazine.

Parameters:

• Caliber: .223 Rem
• Barrel length: 12.5" (31.8 cm) Rosco Manufacturing
• Bolt carrier group: M16 Nitride MPI/HPT
• Overall length: 75.5 – 84.5 cm
• Twist rate: 1:8"
• Material: 7075-T6 Billet aircraft-grade aluminum
• Finish: Melonite nitriding
• Weight: 2.903 kg
• Muzzle device: Cobalt RCB 2.0
• Gas block: Cobalt Kinetics Low Profile Fixed
• Handguard: 11.8" Cobalt Kinetics 7-Side M-LOK (4 QD mounts)
• Charging handle: Radian Raptor LT
• Trigger: Geissele G2S
• Stock: B5 Systems - Bravo
• Buffer tube: Vltor - 5-position
• Buffer: Cobalt Kinetics Pro Buffer - adjustable
• Grip: B5 Systems Type 23 P-Grip
• Safety: Ambidextrous