AR-15 Pro Series 13.7", .223Rem, Black

Cobalt Kinetics AR-15 Pro Series 13.7" is a modern semi-automatic rifle chambered in .223 Rem, 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 13.7" (34.8 cm) 416R stainless steel barrel with a 1:8" twist and a 13" (33.0 cm) M-LOK handguard. The rifle is equipped with an M16 Nitride MPI/HPT bolt, Radian Raptor LT charging handle and Geissele G2S trigger. The gas block is non-adjustable, .750", and the controls include an ambidextrous safety.

Overall length is approximately 78–86 cm, depending on the position of the VLTOR stock. This variant weighs 2.926 kg including magazine. The Melonite® finish provides increased surface resistance to wear and corrosion.

Parameters:

• Caliber: .223 Rem
• Barrel length: 13.7" (34.8 cm)
• Bolt carrier group: M16 Nitride MPI/HPT
• Overall length: 78 – 86 cm
• Twist rate: 1:8"
• Barrel material: 416R Stainless steel
• Material: 7075-T6 Billet aircraft-grade aluminum
• Finish: Melonite nitriding
• Weight: 2.926 kg
• Handguard: 13" Cobalt Kinetics M-LOK
• Charging handle: Radian Raptor LT
• Trigger: Geissele G2S
• Stock: VLTOR
• Ambidextrous safety
• Safety: Ambidextrous
• Gas block: Non-adjustable, .750