TANDEMKROSS Bolt Keeper Extended Bolt Stop (Ruger Mark IV 22/45)
Extended, wider bolt stop lever for the Mark IV 22/45 with a stepped thumb pad and a key-hole lock that holds it captive during grip removal.
- Price
- $27
- Brand
- TANDEMKROSS
- Category
- Lower Parts
Featured in
Features
- •Extended, wider lever than factory
- •Horizontal step cut for positive thumb engagement
- •Machine cut locking feature
- •Key-hole lock retains the bolt stop during grip removal
- •Lightweight aircraft grade aluminum
- •Red or black
- •TANDEMKROSS P/N TK26N0451
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90-day low $26.99More pistol guides & articles
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Overview
The factory bolt stop on a Mark IV is a thin lever that gives the thumb almost nothing to push against, which is a nuisance every time a shooter locks the bolt back or releases it on a fresh magazine. The Bolt Keeper replaces it with a wider lever carrying a horizontal step cut, so the thumb lands on a shelf instead of skating off an edge.
The more interesting feature is the key-hole lock. On a Mark IV the bolt stop is free to migrate once the grip comes off, which is how the part ends up on the bench floor during a cleaning. TANDEMKROSS machined a locking feature into the Bolt Keeper that secures it in place while the grip is removed, so a routine strip stops being a scavenger hunt.
TANDEMKROSS lists fitment as the Ruger Mark IV 22/45 and the company's Cthulhu aluminum frames only. It is made in the USA from lightweight aircraft grade aluminum, installs in minutes, and comes in red or black.
Key Features
- Extended, wider lever than the factory bolt stop
- Horizontal step cut for positive thumb engagement
- Machine cut key-hole lock retains the part during grip removal
- Lightweight aircraft grade aluminum
- Red and black options
- Made in the USA, lifetime guarantee
Pros
- +Wider lever and step cut make the bolt stop usable without regripping
- +Key-hole lock stops the bolt stop from falling out during a strip
- +Aluminum construction at under $30
- +Installs in minutes with no fitting
Cons
- −22/45 and Cthulhu frames only, not listed for the standard steel-frame Mark IV
- −The extended lever sits proud and can be bumped under a tight cover garment
- −Cosmetic finish choice only; red and black perform identically
Detailed Specifications
- platform
- Ruger Mark IV 22/45, TANDEMKROSS Cthulhu aluminum frames
- Material
- Lightweight aircraft grade aluminum
- Finish
- Red or black
- installation
- Drop-in, installs in minutes
- countryOfOrigin
- USA
- sku
- TK26N0451
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