Factory Noveske 14.5" LO-PRO, about 500 rounds through it. Do not shoot it any longer so I'd rather see it go to someone who'll put it to go use. The LO-PRO is not longer listed on the Novekse site, so here are the full specs: 14.5" Cold Hammer Forged 5.56mm Barrel --M249 Machine Gun barrel steel and Chrome Lining (appx. 2 times as thick as an M4 or M16) --Extended Feed Ramps --Same weight as M4 barrel with improved contour for maximum rigidity and no M203 notch --MP HP tested --1 in 7" twist --Mil Spec Phosphate finish --Low-profile gas block pinned to barrel --Forged Vltor MUR upper receiver featuring an anti-rotation interface with the handguard --Shot peened and MP tested bolt --Auto carrier with properly staked carrier key --Gun Fighter Charging Handle --Blackout Flash Suppressor pinned to 16" OAL --Forged Noveske Lower --Mil-Spec receiver extension --Noveske QD End Plate, staked --Flip-up front and rear sights --H Buffer I've upgraded the rifle with: --Magpull UBR Stock --MOE pistol grip --Magpull BAD level I'll throw in one 30 rd mag GI mag, plus the one P-mag shown in the photo. No trades, please. Priced to move at $1250. I am getting out of AR's and have many accessories and quality ammo available for a good deal for whomever buys the rifle.