Multiple Manufacturers AR-15 Upper Assembly, 16.25" 5.56 NATO (1:7 Twist)
This AR-15 upper receiver assembly is chambered in 5.56mm NATO with a 16.25" barrel marked 1:7 twist. It features a free-float M-LOK handguard with a full-length Picatinny top rail for optics and accessories.
Additional features include a slick-side (no forward assist) upper receiver with ejection port dust cover, and a muzzle device installed at the barrel muzzle.