I have always used the trigger that came standard on my 10/22 rifles. I bought a few Tandemkross products that I like on my 10/22's and I feel they're worth the cost of the upgrades instead of the standard bolt, bolt release and charging handle and the upgraded pins that hold in the trigger group etc.. I have been Toying with the idea of upgrading the trigger on my 10/22 but never having upgraded the stock trigger and of course both triggers are single stage, has anyone else ever upgraded the trigger on their 10/22 and was it a Tandemkross product or another manufacturer and given this upgrade is in the neighborhood of $140 or more was it worth it. Any reply is appreciated.