APF 6mm arc carbon fiber barrel. Rifle speed adjustable gas block. Like new less than 100 rounds down the barrel. I also have a Leupold VX-5HD 3-15x56 CDS 30 mm tube, fire dot, duplex retical. Vortex cantilever mount. The scope has only been used a couple times. Can separate if needed. Better deal if kept together. Price is for the gun only another $1,350 for the scope to. Can possibly deliver. Got ammo for sale on a different add.