Proof Research 10/22 22LR 18.5" Bull Barrel, 1-16 Twist - PROOF 114117

This is a replacement barrel for Ruger 10/22 rimfire rifles, chambered in .22 LR with an 18.5" bull contour. The barrel features a 1-16" twist rate and is threaded 1/2-28 at the muzzle for suppressors or other muzzle devices. Proof Research barrels are precision-manufactured for accuracy and durability in rimfire applications.