Fit good - no way to capture the spring to assist installation - KIDD Innovative Design Bolt Handle Charging Assembly w/Guide Rod & Springs For Ruger 10/22

This comes as separate parts. For installation (no instructions given) you slide a spring on the provided rod (and there is an extra), compress the spring by hand and then slide the charging handle down to hold the spring on - holding the assembled contraption with the spring compressed with your hands. Then you place the combined set into the weapon as normal compressing the charging handle and hold that all in place as you drop the firing block into the receiver to hold it all in place.

The 10/22 is not simple to re-assemble. It's just not a very good design in general and having the spring not captured makes it that much harder to put together. But, you can hold it all together to add the block with some practice.

With no instructions and the markings (red, white, green paint) on the springs not very prominent, it's a bit hard to know which spring strength you're using. I looked up the manufacturer's website and saw that there are color markings and what each means. I was relying on flexibility of the springs to tell at first until I found the information on the manufacturer's website.

I probably should have given this a 3 for no capture ability (not referenced in the listing) and no instructions included, but I do like the flexibility of the 3 springs and they did include an extra rod (though there's no way to keep a spring on one - expanded it's much longer than the rod).

The white (light) spring caused some stove pipes during shooting, so I switched to the green (should be normal spring tension for the 10/22) but haven't had a chance to shoot it again to see if the stove piping is resolved. The charging handle is not too much longer than that OEM, but it is a larger cylinder not the curved smaller OEM one, and it is definitely easier to use.

I think this is over-priced for what you get, but one of the less costly ones so giving it a recommendation to buy.