Brownells Brn-Gau-5A Upper Receiver, 12.7'' 1-12 Twist, Pin/Weld, Black

Elevate your shooting experience to new heights with the Brownells Brn-Gau-5A Upper Receiver. Channeling the iconic designs of early military carbines, this upper receiver is a stunning fusion of historical aesthetics and modern craftsmanship, designed for enthusiasts and collectors alike. Step onto the range armed with a piece of history that speaks volumes of your dedication to the art of shooting and firearm legacy. Whether you are engaging targets or simply showcasing your retro build, this upper receiver promises reliability and performance that honors the original designs while exceeding today's standards.

Crafted with precision, the GAU-5A features a sleek, M16 slick side design without a forward assist or shell deflector, further enhancing its classic appeal. The retro XM177-style flash hider, adorned with a proper grenade ring, not only delivers authentic looks but also serves its functional purpose effectively by minimizing muzzle flash. The choice of a lightweight 12.7 inch barrel pinned and welded to reach the legal length of 16 inches makes this upper receiver an excellent choice for those insistent on compliance without compromising on performance. The 1-12 twist rate barrel ensures a steady and accurate shot, reflecting the innovation and reliability found in military-grade firearms.

Ideal for passionate builders focused on retro styles as well as first-time assemblers seeking reliability and ease of use, the Brownells Brn-Gau-5A Upper Receiver provides an enhanced shooting experience that brings the thrill of history to life. Picture yourself assembling a classic AR-15 style carbine that not only invokes nostalgia but performs with the excellence expected from today’s firearms. With a proper A1 rear sight assembly paired with a smooth ejection port cover, your shooting sessions will be seamless and enjoyable, allowing for quick adjustments and peace of mind. Bring authenticity to your next build and let the rich legacy of the GAU-5A inspire your passion for firearms.

With black polymer handguards that mirror the original CAR handguards, this upper receiver doesn’t just perform; it captivates. Its retro charm combined with modernized features ensures you stand out at the range. Take your firearm collection to new narratives, and make the Brownells Brn-Gau-5A Upper Receiver a pivotal part of your journey in the world of classic rifle builds. Unleash your creativity, enhance your skills, and showcase a piece of history in your hand.

Key Features

• M16 slick side upper receiver without shell deflector or forward assist
• XM177 flash hider with proper grenade ring
• 11.5 inch or 12.7 inch 5.56x45mm NATO barrel
• 12.7 inch configuration features a pinned and welded muzzle device, making it 16 inches or more
• 1-12 twist & chrome bore & chamber
• M16A1 ejection port cover
• A1 rear sight assembly
• Carbine black polymer handguards with heatshields
• Manganese phosphate mil-spec bolt carrier group with 9310 bolt

Technical Specifications

What's in the Box

• Brownells Brn-Gau-5A Upper Receiver
• Bolt Carrier Group

Compatibility & Requirements

• Compatible with standard AR-15 lower receivers
• Requires a compatible lower receiver for assembly

Dimensions & Weight