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The Brownells BRN-4 Piston Upper Receiver Kits feature parts from both Brownells and surplus HKA(R) components. Utilizing new production Brownells BRN-4 Bolt Carrier Groups and Barrels, the unassembled BRN-4 Upper Kits feature HKA(R) 416 compatible components, providing an affordable package. The heart of this bundle is the new BRN-4 Bolt Carrier Group, with nitride finish, designed to be compatible with 416 components.
Specifications
- Manufacturer:
- Brownells
- Category:
- upper-receiver
- Platforms:
- AR-15
- Required Component:
- Yes
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This is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.
• Complete assembly ready to use
• Multiple components included
• Value package pricing
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