There were two types of units available from JRA- the 'Rotary Indexing Magazine" for Crosman and QB's- which attached to the breech and had to be turned by hand. The other, much more recent units were complete breeches with an indexing (i.e. turned on its own when cocking) magazine using Marauder magazines. I had sold the prior units, but JRA could not seem to produce the more advanced units on any kind of reliable schedule, so I never brought them in- then he slowly dried up and blew away.

A solution will be coming- it's all just a matter of time...