As requested by popular demand, we are excited to release the new “Bolt Keeper” Extended Bolt Stop for Ruger® Mark IV™ 22/45™!
- Aggressive step geometry for maximum traction
- More purchase than factory lever
- Machine cut locking feature for secure installation



42 Reviews
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Easy to install. Since larger than the factory it allows easier access.
noted above
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Cornerstone thumb safety
I love it. It makes application to engage and disengage so much easier.
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Bolt Keeper
Great accessory that actually works as advertised. Gives you the added perch your thumb needs to drop the bolt.
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Extended bolt keeper
This is the second order for another project Great product
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Prompt shipping.
Now I can easily reach the bolt release with my thumb
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Bolt Keeper Extended Bolt Stop for Ruger® Mark IV 22/45
A+
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Good product and really needed
With the Gas Pedal and oversized safety as thumb rests, the bolt keeper is hard to use if not extended. This works well.
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Extended Bolt keeper for the Ruger MK IV 22/45 Pistol
Really a great added feature for those of us with big hands. Makes it very easy to drop the bolt when time is of the essence. Makes for faster reloads.
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More Better
The Ruger Mark IV 22/45 Lite already being a fine target pistol, this extended bolt stop makes it even easier to lock back and release bolt. Just one of the many great accessories Tandemkross offers.