Brownells194199638
Brownells M16 Bolt Carrier Group, Mpi Inspected, Chrome$130.33
Availability: In Stock
Current Stock: Out of stock
The Brownells M16 Bolt Carrier Group is a fully assembled, inspected component built to mil-spec standards for AR-15 and M16 platforms. Whether you're assembling a rifle from the ground up, replacing a worn carrier, or building a spare upper, this is the kind of no-nonsense part that keeps things running when it matters. Every bolt is Magnetic Particle Inspected (MPI) to catch internal flaws invisible to the naked eye—a quality check that tells you Brownells takes their reputation seriously.
Built from Carpenter C158 steel for the bolt and 8620 steel for the carrier, both materials are heat-treated and shot-peened to withstand repeated firing cycles. The carrier is chrome-lined inside, and both the bolt and carrier wear a durable matte black phosphate finish that resists corrosion without the tactical flash. The gas key arrives properly torqued and staked, and the extractor comes equipped with a red o-ring and spring—details that reflect mil-spec assembly standards rather than bare-bones cost-cutting.
This group will function in both semi-auto and full-auto platforms, making it a versatile choice for shooters who need a reliable, inspected carrier that doesn't come with surprises. If you're upgrading a rifle, building a new upper, or simply want a known-good spare in the safe, Brownells' quality control and straight-forward design make this an easy call.
| Brand | Brownells |
| Product Type | M16 Bolt Carrier Group |
| Bolt Material | Carpenter C158 Steel |
| Carrier Material | 8620 Steel |
| Bolt Treatment | Heat-treated, shot-peened, MPI inspected |
| Carrier Finish | Chrome-lined interior, matte black phosphate exterior |
| Included Components | Bolt, bolt carrier, gas key, firing pin, cam pin, firing pin retaining pin, extractor with red o-ring and spring |
| Platform Compatibility | AR-15, M16 (semi-auto and full-auto) |
| Finish | Matte black phosphate |
Yes. This M16 bolt carrier group is fully compatible with both AR-15 and M16 platforms, functioning in both semi-auto and full-auto rifles.
Magnetic Particle Inspection detects internal flaws and stress cracks in the bolt that are impossible to spot with your eyes. Every bolt in this group is MPI'd before leaving Brownells, ensuring you're not installing a hidden defect that could fail under pressure.
Yes. The gas key arrives installed, properly torqued, and staked—meaning it's ready to go without additional work on your part.
The group is fully assembled and includes the bolt, bolt carrier, gas key, firing pin, cam pin, firing pin retaining pin, and an extractor fitted with a red o-ring and spring.
SKU: 194199670 • Weight: 0.7oz
Availability: In Stock
Current Stock: Out of stock
The Brownells M16 Bolt Carrier Group is a fully assembled, inspected component built to mil-spec standards for AR-15 and M16 platforms. Whether you're assembling a rifle from the ground up, replacing a worn carrier, or building a spare upper, this is the kind of no-nonsense part that keeps things running when it matters. Every bolt is Magnetic Particle Inspected (MPI) to catch internal flaws invisible to the naked eye—a quality check that tells you Brownells takes their reputation seriously.
Built from Carpenter C158 steel for the bolt and 8620 steel for the carrier, both materials are heat-treated and shot-peened to withstand repeated firing cycles. The carrier is chrome-lined inside, and both the bolt and carrier wear a durable matte black phosphate finish that resists corrosion without the tactical flash. The gas key arrives properly torqued and staked, and the extractor comes equipped with a red o-ring and spring—details that reflect mil-spec assembly standards rather than bare-bones cost-cutting.
This group will function in both semi-auto and full-auto platforms, making it a versatile choice for shooters who need a reliable, inspected carrier that doesn't come with surprises. If you're upgrading a rifle, building a new upper, or simply want a known-good spare in the safe, Brownells' quality control and straight-forward design make this an easy call.
| Brand | Brownells |
| Product Type | M16 Bolt Carrier Group |
| Bolt Material | Carpenter C158 Steel |
| Carrier Material | 8620 Steel |
| Bolt Treatment | Heat-treated, shot-peened, MPI inspected |
| Carrier Finish | Chrome-lined interior, matte black phosphate exterior |
| Included Components | Bolt, bolt carrier, gas key, firing pin, cam pin, firing pin retaining pin, extractor with red o-ring and spring |
| Platform Compatibility | AR-15, M16 (semi-auto and full-auto) |
| Finish | Matte black phosphate |
Yes. This M16 bolt carrier group is fully compatible with both AR-15 and M16 platforms, functioning in both semi-auto and full-auto rifles.
Magnetic Particle Inspection detects internal flaws and stress cracks in the bolt that are impossible to spot with your eyes. Every bolt in this group is MPI'd before leaving Brownells, ensuring you're not installing a hidden defect that could fail under pressure.
Yes. The gas key arrives installed, properly torqued, and staked—meaning it's ready to go without additional work on your part.
The group is fully assembled and includes the bolt, bolt carrier, gas key, firing pin, cam pin, firing pin retaining pin, and an extractor fitted with a red o-ring and spring.
SKU: 194199670 • Weight: 0.7oz