Upgrade your 10/22® bolt hold open (B-41) to a fast auto-release system
Rack the bolt with a single pull—no more fighting the factory hold-open.
What makes it special
Key specs
Why KIDD’s auto release works better
The factory Ruger® bolt hold open requires an awkward, inconsistent press to drop the bolt. KIDD’s replacement part reshapes the internal engagement surface so the bolt snaps forward automatically once the shooter pulls it rearward. The component is cut from stainless steel for consistent geometry and long service life—no bending, no tuning, and no breaking in. The result is a faster, cleaner, more intuitive bolt-running experience.
Installation & break-in tips
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