Ruger Mark IV Accessories - Barrels, grips, magazines, triggers, frames, and accessories for the Ruger Mark III, IV and 22/45 Pistols. Ruger Mk III Home * Ruger 10/22 * Tactical Solutions Ruger Mark IV Home * Volquartsen * Majestic Arms 10/22 Thread Protectors * ViewCart * EABCO ... easy packing tack driver with our new Pac-Lite "upper" barrel. 2,626 Posts. #8 · Jun 28, 2019. Yes, the Volquartsen frames are pretty pricey in the $300 and $400 range, but on the plus side, they'll already have a sweet trigger, mag disconnect delete, etc. A Ruger frame would be much cheaper, but don't hold your breath waiting for them to become available.