For Sale: Wolf T-91 12.5 complete upper receiver -$399. Gas piston, hammer forged barrel. 5.56x45 NATO, 1/2x28 thread pattern, 1 in 7 twist rate, 1 piece integral piston, A2 muzzle break. Also includes the correct height front sight and proper rear aperture sight. This would make a great upper for SBR or braced use. Works perfectly with less than 200 rounds through it. Price is $399. If interested, text Gary at (713) 417-1693. Thanks for looking.