Unleash the Potential of Your Firearm with the BRN-180® GEN 2 Upper Receiver!
The BRN-180® GEN 2 Complete Upper Receiver Assembly from BROWNELLS is a revolutionary upgrade for your shooting experience, blending reliability with versatility.
Product Description
The BRN-180® Upper Receiver Group Gen2 features a reliable piston system that has been designed in collaboration with PWS & FM Products, drawing inspiration from the iconic Armalite® AR-180 of the 1960s. As a successor to the original AR-15, the AR-180 serves as a civilianized version of the AR-18, enhancing the M16 platform.
The BRN-180® integrates numerous improvements from the AR-18/AR-180, including a robust and dependable gas piston operating system. Yes, even the creators of the AR-15/M16 eventually adopted a piston!
This Gen2 model boasts two significant upgrades over its predecessor:
- Adjustable Gas System: Now standard on all BRN-180® Upper Receivers, this feature allows users to select between two settings based on their shooting conditions and ammunition for smooth and consistent operation.
- Improved Handguard Retention: The handguard is now secured with a single locking screw, providing better alignment and rigidity during extended firing sessions.
The BRN-180® bolt carrier operates seamlessly on a pair of guide rods, with a built-in polymer buffer at the rear that includes a molded-in steel plate to capture the guide rods. The Nitride bolt mirrors the original AR-180 design, complete with a standard AR-15 extractor.
And yes, the BRN-180® upper receiver is fully compatible with any standard, mil-spec AR-15 lower receiver!
The 16" or 18.5” barrel is crafted from high-strength 4150 carbon steel and features a hard Nitride finish that resists surface wear. Chambered in .223 Wylde, it offers exceptional flexibility in ammunition choices, handling both .223 Remington and military-type 5.56mm NATO ammo with ease.
Up front, you'll find a replica of the AR-180's unique three-prong flash hider, designed to minimize dust signature when shooting prone. The standard ½-28 tpi muzzle threads allow for easy customization with modern AR-15 muzzle devices.
Key Features
- Ultra-reliable AR-180 piston operating system
- Compatible with current mil-spec AR-15 lowers
- Machined 7075 T6 aluminum receiver & handguard with hardcoat anodized finish
- 16" or 18.5” barrel with matte black Nitride finish
- .223 Wylde chamber
- Button rifled bore; 1-8" twist
- ½"-28 threaded muzzle
- Replica 3-prong AR-180 flash suppressor
- Molded polymer ejection port cover
- Total weight: 4.65 lbs
For optimal performance, we recommend using C-Products Duramag and/or Unimag with our 7.62x39 variant.