Specifications
Model: BRB55610SSFF9nb
Upper: Flat top m-4 upper w/ ext feed ramps, 7075-T6 aluminum, hard coat anodized black type III class II finish w/ laser etched t-markings
Caliber: 5.56
Barrel: 10.5" 1/7 Twist, Chrome Moly Steel , M-4 feed ramps, Pistol Length Gas System, 1/2x28 threaded
Flash Hider Option: A2 Bird Cage (standard). Troy Medieval Flash Suppressor or Smith Enterprise Vortex Flash Hider are optional.
Handguard: UTG Pro 9" Super Slim Free Float Quad Rail. (includes 3 2-slot rail sections)
Barrel Finish: Mag Phosphate
BCG: Optional Full Auto BCG w/ upgraded Heavy Duty extractor spring
Charging Handle: Optional Charging Handle