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- Color:
- Black
- Finish:
- Nitride
- Caliber:
- 5.56mm
- Gun Make:
- AR Platform
- Gun Model:
- AR-15, M16
- Hand:
- Right
- Weight:
- 11.4 oz
Code: MWI-BCG-ARCBC-MI-BCG-NIT
MPN: MI-BCG-NIT
UPC: 812102032946
Made in USA
Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.
Product Info for Midwest Industries 5.56/AR15 9310 Bolt Carrier Group (BCG)
Midwest Industries Bolt Carrier Group BCG come in Black Nitride, Nickel Boron, DLC Flat Dark Earth and Titanium Nitride! The Carpenter 158 Bolt is heat treated, shot peened, precision ground for perfect dimensions, and MPI Tested. The 4140 Billet Gas Key is properly torqued with Grade 8 fasteners, and properly staked to ensure reliability. The 4140 Billet Cam Pin is nitride treated for wear resistance. The Billet Machined Extractor is machined from solid 4140 bar stock, heat treated and shot peened, coated for reliable extraction, extractor insert, and O-Ring are included.![]()
Specifications for Midwest Industries 5.56/AR15 9310 Bolt Carrier Group (BCG):
| Manufacturer: | Midwest Industries |
| Color: | Black |
| Finish: | Nitride |
| Fabric/Material: | Stainless Steel |
| Carrier Material: | 8620 Steel |
| Bolt Material: | 9310 Steel |
| Caliber: | 5.56mm |
| Gun Make: | AR Platform |
| Gun Model: | M16, AR-15 |
| Hand: | Right |
| Weight: | 11.4 oz |
| Country of Origin: | USA |
| Gun Type: | Rifle |
Features of Midwest Industries 5.56/AR15 9310 Bolt Carrier Group BCG
- Assembled Bolt Carrier Group BCG for AR-15/M16
- 8620 M16 style carrier
- HM Black Nitride finish
- Properly heat treated
- Final grind before plating
- Carpenter 158 5.56/.223 bolt
- Heat treated
- Shot peened
- Precision ground for perfect dimensions
- MPI - Magnetic Particle Inspected
- 4140 Billet Gas Key
- Properly torqued with Grade 8 fasteners
- Properly staked to ensure reliability
- 4140 Cam Pin
- Heat Treated
- Billet Machined Extractor
- Machined from solid 4140 bar stock, heat treated and shot peened
- Phosphate coated for reliable extraction
- Extractor insert included
- O-Ring included
- Firing pin precision machined from 17-4 H-900 Stainless Steel
Package Contents:
- Midwest Industries 5.56/AR15 9310 Bolt Carrier Group
- Extractor Insert
- O-Ring Included
Midwest Industries 5.56/AR15 9310 Bolt Carrier Group (BCG) Orderable Models
List of Orderable Models
- Midwest Industries Bolt Carrier Group BCG 9310, 5.56/AR15, Black, Titanium Nitride Finish, MI-BCG-NIT , MPN: MI-BCG-NIT , UPC: 812102032946 , Code: MWI-BCG-ARCBC-MI-BCG-NIT
Midwest Industries 5.56/AR15 9310 Bolt Carrier Group (BCG) Unavailable & Discontinued Models
List of Unorderable Models
- Midwest Industries Bolt Carrier Group BCG C158, 5.56/AR15, Nickel Boron, Titanium Nitride Finish, MI-BCG-NIB , MPN: MI-BCG-NIB , UPC: 812102032953 , Code: MWI-BCG-ARCBC-MI-BCG-NIB
- Midwest Industries Bolt Carrier Group BCG C158, 5.56/AR15, FDE, Titanium Nitride Finish, MI-BCG-FDE , MPN: MI-BCG-FDE , UPC: 812102032960 , Code: MWI-BCG-ARCBC-MI-BCG-FDE
- Midwest Industries Bolt Carrier Group BCG C158, 5.56/AR15, Tin Gold, Titanium Nitride Finish, MI-BCG-TIN , MPN: MI-BCG-TIN , UPC: 812102032984 , Code: MWI-BCG-ARCBC-MI-BCG-TIN