Scott,
The eBay pictures are all pistol breeches but the pictures I posted above are my .25 cal Mrod with his breech installed. The rifle breech design looks just like pistol design, but with an obviously wider magazine well to accept the .25 cal. and different breech screw configuration. I don’t know about breeches for the .177/.22 Mrods but the .25 cal. fits the RIFLE spot on.
Dennis