Engineering the world's finest rimfire rifles, pistols, and parts.
There's no excuse to miss
Subscribers gain access to free shipping on retail orders, are the first to know about new products, and receive other exclusive offers.

Want Free Shipping?

Subscribe to our mailing list and get free shipping!

No thanks, I'm already subscribed

V-Lock Retainer

V-Lock Retainer

Having issues with the Bolt Stop Cross Pin walking out of your MK IV frame during heavy use? Our all new V-Lock Retainer provides positive retention of the pin so that it can't drift out on it's own, but without impacting your ability to take apart the pistol.

$10 Add to Cart


  • Replaces part # 41 on the Ruger MK IV and part # 37 on the Ruger MK IV 22/45
  • Product Number: V4LS
  • UPC:
  • Made in the USA


Complete installation instructions are available online

Related Items

©2020 Volquartsen Firearms
All serial numbered items must be shipped to an FFL dealer.
Contact with website issues or suggestions.
10/22™, 22/45™, Mark III™, and MK IV™ are trademarks of Sturm, Ruger & Co., Inc.

Please wait while we process your request