Brownells Xm177E2 Upper Receiver, 11.5'', 1-12 Twist, Black

Unleash your passion for classic firearms with the Brownells XM177E2 Upper Receiver, designed to bring nostalgia and functionality right into your hands. Imagine assembling your very own Retro build, reminiscent of the iconic carbine configurations that defined an era. This upper receiver stands out with its distinctive XM177E2 moderator-inspired flash hider, meticulously crafted to maintain the authentic aesthetic while providing modern performance. With ports strategically placed around its radius, this flash hider effectively mitigates muzzle flash, ensuring your shooting experience remains discreet without sacrificing style.

The heart of the XM177E2 is its lightweight barrel, available in two lengths: 11.5 inches for nimble maneuverability or the slightly longer 12.7 inches, designed for those who require the versatility of a pinned and welded muzzle device. This configuration achieves the legal requirement of a 16-inch barrel length, allowing you to enjoy your firearm without the complexities of additional regulations. Choose between 1-12 or 1-7 twist rates to optimize your shooting experience: the former is perfect for lighter 55gr bullets, while the latter excels with more robust 62gr or heavier ammunition, providing you with the ideal setup for any shooting scenario.

Every aspect of the XM177E2 Upper Receiver has been engineered for authenticity and exceptional performance. The M16A1 style receiver, complete with a forward assist but no shell deflector, harmonizes beautifully with the intricately crafted A1 rear sight. As you zero in on your target using the standard A1 aperture, you’ll appreciate the craftsmanship that respects the legacy of its forebears while delivering modern functionality. The black carbine handguards not only offer a nostalgic look but also feature heat shields to keep your firearm cool during extended sessions at the range or in the field.

With the included mil-spec bolt carrier group, featuring manganese phosphate finish and a chrome-lined interior, you can trust in its durability and reliability under pressure. Whether you're a collector eager to embody a piece of history or a shooter looking for a retro build packed with contemporary features, the Brownells XM177E2 Upper Receiver is more than just a component; it’s a pathway back to a storied past combined with the performance and precision you expect from today’s firearms. Make your next generation of shooting both a tribute to the past and an investment in excellence.

Key Features

• M16A1 upper receiver without shell deflector
• XM177 flash hider with proper grenade ring
• 11.5 or 12.7 inch 5.56x45mm NATO barrel
• 12.7 inch configuration features a pinned and welded muzzle device, achieving 16 inches total length
• 1-12 or 1-7 twist options with chrome bore and chamber
• M16A1 ejection port cover with flat external "bump"
• Tear drop forward assist for reliable operation
• A1 rear sight assembly for user-friendly adjustments
• Carbine black polymer handguards with integrated heatshields
• Manganese phosphate mil-spec bolt carrier group featuring a 9310 bolt

Technical Specifications

What's in the Box

• Brownells XM177E2 Upper Receiver
• Bolt Carrier Group

Compatibility & Requirements

• Compatible with standard AR-15 lower receivers
• Requires appropriate ammunition for optimal performance

Dimensions & Weight