Original price was: $349.99.$262.49Current price is: $262.49.
BRN-4® Compelte Bolt Carrier Group with Manganese Phosphate Carrier and Chrome Bolt
Now offered with a chrome bolt and manganese phosphate carrier, this version of the BRN-4® Bolt Carrier Group is a great upgrade for any BRN-4 or replacement part for an MR556 or 416 rifle. The chrome bolt and cam pin make for easy cleaning and offers a great looking surface finish. The extractor has a phosphate finish, as this allows for a "grippier" interface with the brass, ensuring reliable and consistent extraction. The phosphate carrier is hardened to hold up to extreme firing schedules, such as sustained full auto fire. The tail of the carrier is enlarged to prevent any tilting from the piston impact. The full length carrier is an M16 type, and also has the MR556 cutout, making it compatible with MR556 and 416 upper receivers.
Includes:
Out of stock
BRN-4® Compelte Bolt Carrier Group with Manganese Phosphate Carrier and Chrome Bolt
Now offered with a chrome bolt and manganese phosphate carrier, this version of the BRN-4® Bolt Carrier Group is a great upgrade for any BRN-4 or replacement part for an MR556 or 416 rifle. The chrome bolt and cam pin make for easy cleaning and offers a great looking surface finish. The extractor has a phosphate finish, as this allows for a "grippier" interface with the brass, ensuring reliable and consistent extraction. The phosphate carrier is hardened to hold up to extreme firing schedules, such as sustained full auto fire. The tail of the carrier is enlarged to prevent any tilting from the piston impact. The full length carrier is an M16 type, and also has the MR556 cutout, making it compatible with MR556 and 416 upper receivers.
Includes:
| Weight | .82 lbs |
|---|---|
| Make | Brownells |
| Model | BRN-4 |
| Finish | Black |
| Cartridge | AKK_5.56 x 45, AJJ_223 Remington |
| Make/Model | Brownells, BRN-4 |
We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.
Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.
Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.
Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.
We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.
