Orchid Defense Group 5.56 M16 Bolt Carrier Group is coated in a black nitride finish to prevent carbon build up and ensure that your rifle keeps functioning. The carrier is heat treated and given a final finishing grind before plating assembly. The bolt is also shot preened and heat treated, plus is coated in black nitride. The 4140 steel gas key is properly staked and seated with extra strong Grade 8 fasteners. A 4140 Cam Pin is nitride treated for increased wear resistance. Finally this AR-15 Bolt Carrier Group features an extra strong 17-4 H-900 Stainless Steel firing pin and a phosphate coated extractor for reliable function. 

- 5.56 NATO
- M16/AR-15 Cut
- Magnetic Particle Inspected
- Made in the USA
- Black Nitride Finish
Bolt Finish: Black Nitride
Bolt Material: 8620 Carpenter Steel
Brand: Orchid Defense Group
Caliber Gauge: 5.56 NATO
Carrier Finish: Salt Bath Nitride
Carrier Material: 8620 Carpenter Steel
Carrier Style: M16 Bolt Carrier
Magnetic Particle Inspect: Magnetic Particle Inspected
MPN#: OD-BCG-556

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