Brn-4(R) Complete Upper Receivers - Brn-4 5.56mm 10.4" Med Bbl Complete Upper W/9" Handguard

Brownells

Resumen

The Brownells Brn-4 Complete Upper Receiver is a fully assembled unit designed for the AR-15 platform, featuring a 10.4-inch barrel chambered in 5.56 NATO. This compact upper is ideal for building a versatile firearm, providing a balance between maneuverability and performance, particularly for those looking to optimize for close-quarters engagements. Its design is commonly incorporated into short-barreled rifle builds where a shorter overall length is desired without sacrificing caliber effectiveness.