T.REX AR-15 Bolt Carrier Group

The T.REX Bolt Carrier Group has everything we look for when buying a BCG. It features a hard chrome finish for excellent corrosion resistance and increased lubricity, as well as sand cuts for prolonged suppressor use. The gas key is made from 4130 chromoly steel, phosphate/chrome-lined per Mil-Spec, sealed with Permatex, and secured with properly staked T25 Torx fasteners. The included BCM bolt is made from Carpenter 158 steel with a phosphate finish and is both HPT and MPI tested.

• 1x T.REX AR-15 Bolt Carrier Group
  • 1x KAK Enhanced Carrier, Chrome, w/ Sand Cuts
  • 1x BCM Bolt Assembly
  • 1x BCM BCM Cam and Firing Pin

FEATURES

• Angled carrier rail cuts (Sand Cuts) for adverse conditions and prolonged suppressed use
• Standard side venting, full auto profile
• Hard chrome 8620 steel carrier. Outside rails, bolt runs, and gas bores ground to .0002 tolerances
• Phosphate/chrome-lined 4130 gas key, secured with T25 Torx fasteners, torqued to spec, and staked with a hydraulic staking machine
• Permatex sealed gas key to prevent leakage
• Bolt assembly machined from Mil-Spec Carpenter No. 158 steel, shot peened
• Tool steel extractor with BCM extractor spring
• Tool steel ejector
• HPT (High-Pressure Tested) and MPI (Magnetic Particle Inspected)
• 8640 hard chrome-plated firing pin and 4340 cam pin, both per USGI spec

Made in the USA.

Technical Specifications