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