Product Description
We are proud to announce the release of our QPQ Black Nitride .458 Socom Bolt Carrier Groups. our BCG Features Match Grade Melonite/Nitride Treated BCG and is machined and finished to a higher standard to meet and exceed all Mil Spec. It is machined using the most precise equipment from the leading top tier OEM Manufacturer. The bolt is MPI/HP tested & Marked to give you ultimate confidence in your competition rifle system. MPI (Magnetic Particle Inspected) Bolt, HP (High Pressure Tested). Obsidian Match Nitride Bolt Carrier Group.
Lifetime Warranty & 100% Made in the U.S.A
Specifications:
Carrier:
- Material: Domestic Aircraft Quality 8620 Steel
- Gas Key: 4130 Billet Steel: Grade 8 Gas Key Screws (properly staked)
Bolt Specs:
- Bolt Material: 9310
- Extractor Material: 4140 Steel
- Mil-Spec O-Ring
- Mil-Spec Gas Rings (3)
- Cam Pin Material: 4140 Steel
- Firing Pin Material: Hard Chrome/Ground 8740
- Other: MPI Tested, Shot Peened
- QPQ Black Nitride Treated
Features:
- MPI Bolt with inside and out Black Nitride Treatment
- Billet Machined Extractor with O-ring Insert
- Military Specification Gas Key Staking
- Gas Key Hardened to USGI Specifications
- Made in the USA
- Weighs 9.8 oz
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