A Better Bolt Lock for the Ruger 10/22

Bill Ruger designed, or promulgated the design, of now-iconic American firearms, many with novel features that improve performance, simplify operation and reduce manufacturing costs. I don’t presume to challenge his engineering mind, and at risk of picking a nit, in spite of all its positive features, the Ruger 10/22’s bolt lock is among the least ergonomic of any semiautomatic rimfire rifle I’ve ever encountered (the one on Winchester’s late Model 77 is a “Worst-Of” runner-up). Virtually every new shooter or shooter new to the 10/22 that I’ve trained or observed inevitably is perplexed by the bolt lock’s near invisibility and non-intuitive rocking-motion operation. Even experienced 10/22 owners will occasionally fumble with the 10/22’s bolt lock. 

An inexperienced new shooter fumbling with the factory bolt lock can potentially create a safety issue. As you no doubt have observed, new shooters (and others suffering a moment of complacency) fumbling with guns frequently end up waving muzzles around and pointing them in directions other than downrange, to the consternation of standers-by. While the 10/22 benefits from upgrades such as a lightened trigger and extended magazine release, replacing that factory bolt lock with something better designed is pretty much a must-do for both competition and plinking enjoyment, as well as for newbie safety.

The 10/22’s factory bolt lock is a simple flat piece of stamped steel with an edge measuring .060-inch wide, and the portion contacted by the forefinger or thumb to engage or disengage it protrudes only about .165 inch in front of the trigger guard. That .060-inch width is a minuscule amount of surface area for the finger to feel at the best of times, and when wearing winter gloves, it is darn near impossible to find and operate. 

The bolt lock’s rocking motion of a bare fraction of an inch downward/back to engage and upward to disengage exacerbates the problem, and this is where the fumbling occurs. To wrap up the nit-picking, one hand must grasp the bolt handle to retract the bolt (both when engaging or disengaging the lock) while the other hand operates the bolt lock, and the shooter’s third hand safely controls the rifle. 

TANDEMKROSS’s Bolt Keeper Extended Bolt Lock resolves these problems by palm of hand to forehead attaching a knurled knob

to a slightly redesigned bolt lock to accommodate it. Drop-in is easy DIY and requires no special tools. Clear the rifle of ammunition and cock the action to keep the hammer out of the way. Turn out the 10/22’s takedown screw and remove the barrel band, then pull the barreled action from the stock. Push out the two receiver cross pins to remove the trigger housing assembly (Ruger’s schematic calls the entire assembly a trigger guard) from the receiver. Push out the lower pin that retains the bolt lock and magazine release, and the upper pin that retains the bolt lock and the ejector. Depress the magazine latch plunger and remove the magazine latch.

Pull the factory bolt block out and drop the TANDEMKROSS Bolt Keeper Extended Bolt Lock in and reinstall the ejector, magazine latch, and upper and lower pins. Remember to hook the lower leg of the bolt lock spring over the leg of the bolt lock, and the upper leg of the spring under the upper pin when reassembling in reverse order. Note that the TANDEMKROSS bolt lock knob will prevent dropping the barreled action back in the stock, so attach the knob as the absolute last reassembly step. Apply a drop of thread locker to the screw on the knurled knob and thread it into place. Thread locker is important, as the threads on both the screw and the lock plate are rather short.

Now, here’s a second major improvement the extended bolt lock brings to the 10/22: In addition to its ergonomic benefits, now it isn’t necessary to use both hands to disengage the bolt lock manually, one hand manipulating the bolt lock and the other simultaneously working the bolt handle. Simply pull backward on the bolt handle and release it to send the bolt forward. With one hand grasping the forearm, the rifle stays under safe control without the need of a third hand.

Of all TANDEMKROSS upgrades (or anyone else’s) for the 10/22, the $30 Bolt Keeper Extended Bolt Lock goes beyond improving finesse for fast competition or pleasurable plinking to address a potential new-shooter safety issue. Some hunters may point out that, though welcome when wearing winter gloves, the knurled knob is a bit oversized for their needs. For them, TANDEMKROSS eliminates the knob with the Guardian Bolt Release Plate. This $12 DIY part drops in the same way as the Bolt Keeper Extended Bolt Lock, and it, too, allows one-handed unlocking of the bolt by simply pulling backward on the bolt handle and releasing to let the bolt fly forward. 

Replacing the 10/22’s bolt lock is super simple and has no “landmine” surprises, such as suddenly realizing a slave pin or an assistant is needed for reassembly. (As an aside, because the bolt lock pivot pin also retains the magazine release, you might as well upgrade to an extended, aluminum $20 TANDEMKROSS Skeletonized Magazine Release while you’ve got the thing apart.) Note that your Ruger 10/22 owner’s manual has several pages of “exploded view” schematics to guide you. In addition to the Ruger schematics, a video on the TANDEMKROSS website walks you through the entire drop-in process, so you can see what’s involved even before you buy, and that applies to many of their DIY upgrades for the 10/22.

Those upgrades include that extended magazine release, stronger magazine release springs for those 15-, 25- and 50-round 10/22 magazines, enhanced trigger and trigger kit, titanium firing pin, tool steel disconnector, precision barrel V-block, captive receiver cross pins and more. Also, as mentioned, TANDEMKROSS has a selection of 10/22-specific tools to make maintenance a lot easier, all of them made in the USA and priced for the blue-collar DIYer. Check them out at TANDEMKROSS.com.