Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group – Phosphate/Chrome-Lined - D127
In stock
The Dirty Bird AR-15 Bolt Carrier Group comes fully assembled and ready to be dropped in. The carrier body is machined from 8620 steel, heat treated, & MP inspected. The carrier’s bore is hard chromed for increased corrosion resistance and reliability, per mil-spec. The bolt is machined from Carpenter 158 tool steel, shot peened to relieve stress, individually high-pressure tested and MP inspected. The bolt and carrier are both treated with a Mil-Spec phosphate coating for its durability and corrosion resistance. This Dirty Bird Phosphate Bolt Carrier Group features a gas key tube that is hard chromed and properly torqued and staked screws.
Bolt
- Machined from Carpenter Technology No. 158 alloy.
- Heat treated
- Shot peened per ASTM B851/SAE AMS2430S
- Individually High Pressure Tested (test fired)
- HP proof testing, 100% using a high pressure M197 or SAAMI commercial equivalent, without evidence of failure
- Individually Magnetic Particle Inspected after Initial Test Fire
- Manganese Phosphate Finish
Extractor
- Tool Steel Extractor
- Manganese Phosphate Finish
- Mil-Spec O-Ring
Carrier
- Machined from AISI 8620 aircraft quality alloy per ASTM A108/A322-13
- Full Mass M16 Profile
- Stress Relieved
- Hard Chrome Bore
Gas Key
- Machined from 4130 chromoly steel alloy per ASTM A108/A322-13
- Grade 8 Hardware
- Properly Staked
- Hard Chrome Internal
- Permatex sealed
MADE IN THE USA!
Backed by the Dirty Bird Industries Lifetime Warranty!
Weight | 0.74 oz |
---|---|
Bolt Material | |
Cartridge Compatibility | .223/5.56 NATO/.300 BLK |
Finish | |
Carrier Profile | |
High Pressure Tested | |
Magnetic Particle Inspected | |
Platform | AR-15 |
Bolt Finish | |
MPN | D127 |
UPC | 00810084372258 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
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