What's in the Box Ruger Harrier 5.56 NATO Semi-Auto Rifle (1) 30-Round Magazine Cable Lock Owner's Manual The Harrier tactical rifle features a A2 Pattern pistol grip; M4-style collapsible buttstock on a Mil-Spec buffer tube; Picatinny rail at front and rear; QD sling sockets; M-LOK handguard; threaded, Government profile barrel; forward assist; dust cover; brass deflector; GI trigger; charging handle. Includes A2 flash hider and one 30rd Magpul PMAG magazine. Firearm Features Selector Switch Safety A2 Flash Hider Picatinny Rail M-LOK Handguards 1 / 2"x28 Thread M4 Style Collapsible Stock Single Stage Trigger Firearm Specifications Manufacturer: Ruger Model: Harrier Caliber: 5.56 NATO Barrel Length: 16.1" Threaded Twist Rate: 1:8" Finish: Black Magazine Capacity: 30 Rounds