CST 2nd Gen CST Auto Bolt Stop available with the Power Custom Match 10/22 Bolt in a kit.

CST Auto Bolt Stop system provides:

A last shot bolt hold open function with factory Ruger magazines with no mods to the mag required.

Magazines can be removed and reinserted with the bolt in open position.

Allows an automatic release once a loaded magazine is reinserted by pulling the bolt to the rear and letting it go.

*Eliminates the need to “count your shots”, the final discharge will have a distinctive sound and recoil impulse telling you that your rifle is empty.

The Power Match Bolt will replace factory MIM "cast" bolt and can use the original charging handle.   Auto Bolt Stop replaces the factory bolt lock and ejector in the trigger assembly and would also replace any "automatic bolt release" (modified bolt lock) if installed.

NOTE:  The Power Match Bolt is specially designed for the CST 2nd Generation Auto Bolt Stop.  The 2nd Gen Auto Bolt Stop system will not function with any other bolt.  For those who have already purchased the required Power Match Bolt, the CST 2nd Generation Auto Bolt Stop is available individually and provides an excellent upgrade to your 10-22 rig.