The Rock River RUK-15 pistol features a forged RRA LAR-15 lower receiver; forged A4 upper receiver; low profile gas block, RRA NSP flip-up front and rear sights and RRA lightweight aluminum free floating, 4.25" pistol length, M-LOK compatible handguard. Includes Low Pro M-LOK compatible handstop and magazine.
Action : Semi-Auto
Caliber : 223 Rem
Barrel Length : 4.50"
Capacity : 30+1
Grips : Black Hogue Rubber
Sights : Flip Up Front & Rear
Stock Material : Synthetic
OAL : 22.25"
Stock Finish : Black
Barrel Length Range : 4" to 4.99"