Brownells BRN AR-15/M16A1 RETRO CARBINE 5.56MM 12.7'' 1-7 BBL ASSEMBLY BABR557462M

Brownells BRN AR-15/M16A1 Retro Carbine 5.56mm 12.7'' 1-7 Twist Barrel Assembly The Brownells BRN AR-15/M16A1 Retro Carbine Barrel Assembly is a precision-manufactured 12.7-inch barrel designed for retro-style AR-15 and M16A1 carbine builds. Chambered in 5.56mm NATO with a 1-7 twist rate, this barrel assembly offers a unique length that provides a balance between compactness and improved velocity compared to shorter carbine barrels. Retro Styling with Modern Rifling Specifications Engineered to support authentic retro carbine projects, this 12.7-inch barrel features a 1-7 twist rate that effectively stabilizes a wide range of bullet weights, including heavier 62-grain and 77-grain projectiles. The slightly longer 12.7-inch length delivers better muzzle velocity than traditional 11.5-inch carbine barrels while maintaining the classic carbine profile favored in M16A1-style builds. It is designed to work with a carbine-length gas system for reliable cycling. Key Features of the Brownells BRN Retro Carbine Barrel Assembly 12.7-inch barrel length for retro carbine configurations Chambered in 5.56mm NATO 1-7 twist rate for excellent bullet stabilization Designed for M16A1-style and retro AR-15 builds Precision machined for accuracy and long-term durability Compatible with standard AR-15 upper receivers Model: BABR557462M Ideal Applications This 12.7-inch retro carbine barrel assembly is ideal for builders creating M16A1 clones, early-style carbines, or custom retro AR-15 rifles where a slightly longer barrel is desired. The 1-7 twist makes it suitable for both historical accuracy and modern ammunition performance. It is a popular choice among retro enthusiasts, collectors, and shooters looking for a compact yet versatile carbine barrel with improved ballistic performance over shorter options. Why Choose Brownells BRN Retro Barrels? When searching for an M16A1 Barrel Assembly, Retro Carbine Barrel, or 12.7" 5.56 Barrel, this model stands out for its quality construction and specialized specifications. Brownells is a trusted name in the firearms industry, known for producing reliable barrels and components that support both modern and historical firearm builds. Complete your retro carbine build with the Brownells BRN 12.7'' 1-7 Twist Barrel Assembly. The End