ONE HORSE LLC MIL-SPEC 5.56/300BLK BOLT CARRIER GROUP FOR AR-15/M16 BLACK NITRIDE

Run your rifle with confidence using this reliable M16 bolt carrier group. Built for 5.56/.223 and .300 Blackout, it delivers smooth cycling, consistent extraction, and dependable performance in any setup. The full nitride finish adds durability, corrosion resistance, and easy maintenance, all backed by Mil-Spec construction and a properly staked gas key.

A simple, rugged upgrade for any AR15 build. Every One Horse rifle and component is made in America with uncompromising standards. We use U.S.-sourced materials, U.S. manufacturing, and strict quality control at every step. No shortcuts, no imported surprises — just dependable parts built by people who take pride in American craftsmanship. When you run One Horse, you’re running gear you can trust every single day.

SPECIFICATIONS:

• 9310 Tool Steel Bolt
• 8620 AQ Steel Carrier
• Full MIL-SPEC Heat Treatment
• Magnetic Particle Inspection (MPI)
• Back of Lugs Chamfered for Reliability
• Spring, Insert, & O-Ring Installed on Bolt Extractor
• Salt Bath Nitrided Bolt, Carrier & Cam Pin
• S7 Extractor
• Staked Gas Key with Grade 8 Fasteners
• Full Auto Compatible
• Forward Assist Serrations
• All USA Materials and Manufacturing