(Take it at Face Value:) The GRT111 trigger is a drop in replacement that fits MANY airguns that may or may not have potential to become fine shooters. (IMO most airguns it fits in fall in the "able" catagory). Be it known,,,, other than the fact that "Mr. Bob" is a personal Friend of mine,,, I have,, in NO way any fiscal interest in my own PERSONAL opinions stated here. The GRT111 trigger fits many of what many consider "low end" springer guns. (Many may call them "Diamonds in the Rough") Ihave owned MANY of these type guns. The OEM triggers on these guns in most cases are,,,,, well,,,, HORIBLE to say the least. (It would be hard in most cases to design worse). The GRT 111 trigger changes these type guns,,,,, all of a sudden,, you have a truly adjustable trigger,,two stage adjustment,,,nice predictable pull,,,all of a sudden,,, you KNOW when your gun is gonna fire!! ( I just layed my finger on one today) Im not postin this as to the greatness of the GRT111 trigger,,everyone "in the know" knows about em. My point is,,,(Man did I get sidetracted). Lots of Folks get all worked up about the Diana plastic triggers. Everyone that REALLY knows me here knows I am a Diana fan. (RWS for those that call em that,,RWS is the exporter,,,Diana makes em) Ihave NEVER had ANY problem with Diana "plastic" triggers. If,,,,however,,,"Mr Bob" ever decides to spend the tens of thousands of dollars it will MOST CERTAINLY take to develop,,,, a SAFE,,,,RELIABLE,,,ASTHETICLY PLEASING,, Trigger for Diana guns,,,, rest assured,,,,,Im gonna get one with a really low serial # on it. In the mean time,,,,I will just be happy with my T-01,s & T-05,s!! Now,,,,,,I gotta work on gettin back my old Diana 24!! :p Just my 2 cents. Tim.