Dirty Bird Brand AR-15 Parts
Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group - Phosphate/Chrome-Lined
In stock
Description
The Microbest BCG has been designed from the ground up with the most avid shooters in mind, using only the best materials available on the market today. The bolt assembly is machined from Carpenter No. 158® steel, shot-peened, MP marked, HP tested, and has a tool steel extractor that is machined from bar stock.
Features:
- 4340 Extractor spring, mil-spec insert and extractor retainer pin in mag phosphate
- Mag phosphate ejector
- Mil-spec stainless gas rings
- 8620 carrier in FA profile chrome lined
- 4130 gas key with grade 8 retainers and sealed
- 4340 cam pin in mag phosphate
- 8740 firing pin in hard chrome
- 1038 retaining pin in mag phosphate
Additional information
| Weight | 15 oz |
|---|---|
| Bolt Material | Carpenter 158 Steel |
| Cartridge Compatibility | .223/5.56 NATO/.300 BLK |
| Finish | Mag Phosphate |
| Carrier Profile | M16 |
| High Pressure Tested | Individually HP Tested |
| Magnetic Particle Inspected | Magnetic Partical Inspected |
| Platform | AR-15 |
| Bolt Finish | Mag Phosphate |
| UPC | 14699 |
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.
