https://www.turnbullrestoration.com/gun/color-case-hardened-ruger-mark-iv-threaded-barrel-only-with-picatinny-rail-log-7706/
BARREL ONLY - Turnbull Finished Ruger Mark IV, Threaded, Picatinny Rail - SOLD - Turnbull...
Feb 23, 2021 - BARREL ONLY - This is a color case hardened Turnbull Ruger Mark IV barrel, threaded for a suppressor, and including a Picatinny Rail.
turnbull finishedmark ivpicatinny railbarrelruger