The adapter includes {HEAD ~ a mechanism} which cooperates with {TAIL ~ a retention catch} of a rifle to effect registration of the adapter with the rifle and for allowing the magazine cartridge to be releasably connected to the adapter 
cooperates with
The adapter includes { HEAD ~ a mechanism } which cooperates with { TAIL ~ a retention catch } of a rifle to effect registration of the adapter with the rifle and for allowing the magazine cartridge to be releasably connected to the adapter
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH