Toolcraft
Toolcraft 458 / 450 Mil-Spec Bolt Carrier Group AR-15 Nitride
- SKU:
- 02-600
- MPN:
- TOOAUTO-SBN-458
Description
This bolt carrier is manufactured from case hardened 8620 steel with properly staked 4130 steel gas key. The accompanying bolt is case hardened 9310 steel, shot peened, HPT and MPI tested, and finished in a self-lubricating polished black nitride. Bolt lugs are CNC ground following heat treatment to insure the greatest accuracy possible.
Material: Case Hardened 8620 Steel
Finish: Black Nitride. This advanced low friction coating minimizes the need for lubricants.
Gas Key: 4130 Steel attached with Grade 8 hardware and properly staked into a milled “valley” to ensure proper positioning.
Cam Pin: Hardened 4340 cam pin
Firing Pin: Mil Spec firing pin made of 8740 steel, center-less ground and Hard Chrome coated
Bolt Assembly: The Bolt is “true” Mil Spec dimension and external surfaces are CNC ground after heat treat for a precision fit.
Material: Case Hardened 9310 Steel.
Finish: All Bolt components Shot Peened Black Nitride
Extractor: 4340 Steel , Manganese Phosphate coated o Mil Spec Extractor Spring & O-Ring Combination
MPI: Magnetic Particle Inspected
HPT: High Pressure Test
458 SOCOM / 450 Bushmaster
Additional Information
Dropship: |
No |
Platform: |
AM-15 |
Original Store: |
ACME Machine |
Caliber: |
458 SOCOM |
Caliber: |
450 Bushmaster |
Finish: |
Black Nitride |
2 Reviews
-
Excellent fit and finish, looks and works great!
This bcg fit my build perfectly, quality looks really good. I did use a different bolt that was matched to my barrel but I would buy this item again based on first impressions. I have not shot with this bcg yet though.
-
Worked great
Fit and finish are nice. Everything worked aa designed with 2 different hand loads.
Related Products
Related Products
Toolcraft 6.8 Mil-Spec Bolt Carrier Group AR-15 Nitride
Toolcraft
Toolcraft 7.62x39 Mil-Spec Bolt Carrier Group AR-15 Nitride
Toolcraft
Toolcraft 5.56 Mil-Spec Bolt Carrier Group AR-15 Nitride C158
Toolcraft
Toolcraft 9mm Mil-Spec Bolt Carrier Group Nitride - Glock
Toolcraft
Toolcraft 6.5 Grendel Type 2 Mil-Spec Bolt Carrier Group AR-15 Nitride
Toolcraft