The PRod trigger assembly is available (only?) as a complete unit.... You will need either the PRod/Challenger hammer and striker or you can fill in the bottom of your 22XX hammer with JB Weld to eliminate the waist....PRod Trigger group - 2220-103 (mine didn't come with the safety ball and spring, but it should have, likely fell out before shipping) Hammer - CH2009A009Striker - 1763A036Acetal Pin - CH2009-023 (stops the striker from rotating - not necessary if you run it at max power - ie full CCW)The trigger group shares the same grip frame as the later version of the 22XX trigger group (with the plastic side plate) and will bolt right up to a 22XX tube.... Bob
The PRod trigger group is not compatible with a Disco stock of course.... you would have to use pistol grips, a skeleton stock, or aftermarket stock.... The mounting holes are the same spacing and threads.... any 8-32 screw of the right length would work for the front screw.... You will either have to modify your hammer by filling the "waist" or get a PRod/Challenger hammer and striker as stated above....Bob
Thanks Mike, I forgot that....Bob