Well, I went on ahead and got a Green Mtn. barrel, 20 inch same contour as stock barrel, nothing fancy ya know. Took everything apart to the bare receiver and put the new GMT barrel in, went to the gun range and started to break the barrel in,,,I'm truly impressed. 30 rounds CCI Mini Mag 36 gr. bullets in a hole at 50 yards ya can cover with a dime. That's pretty **** good compared to the original factory barrel.