Rock River Arms LAR-15 NSP Carbine is a quality sporting AR with an entry level price. From muzzle to buttstock it has plenty of features that would be upgrades on other rifles in its range. The 16 inch barrel is fluted M-4 Profile with chrome moly lining. Features include RRA Operator muzzle brake, gas block sight base, two stage trigger, over molded pink pistol grip, carbine adjustable pink buttstock, carbine length pink quad rail, pink flip front and rear sights. Included with purchase is one pink polymer magazine, LPS-1 weapon wipe, RRA case, manual, and warranty.