CMMG 22D7C6C Replacement Barrel Kit with Bolt Carrier Group, 22 LR 16.10" Threaded, Black Nitride Chromoly Steel, Fits AR-15/Mk4 $372.40
Tactical Solutions XRBRLPERFMB X-Ring Performance Barrel 22 LR 16.50", Matte Black Spiral Fluted Chromoly Steel Fits Ruger 10/22 $344.00
CMMG 22D5B6E Replacement Barrel Kit with Bolt Carrier Group, 22 LR 4.50" Threaded, Black Nitride Chromoly Steel, Fits AR-15/Mk4 $324.18
Tactical Solutions PLIV6TEMBRF Pac-Lite Barrel 22 LR 6" Threaded & Fluted, Drilled & Tapped, Adj. Sights, Black Anodized for Ruger Mark IV & IV 22/45 $344.00