Yep, the Welsh Willy trigger is no longer available. If it was I would own at least one striker. The GRTIII will supposedly fit in the trigger mechanism but will only protrude down about 1/2" into the trigger guard. It's too bad. Almost every review I've read about this rifle is the same: powerful, well built, and the trigger is horrible. And even if the Quattro did fit it's not a very good trigger either.Scotty