May sound crazy. Is there any chance this is a Quackenbush prototype?
love a good mystery. after being here in the philippines a year now and seeing all sorts of airguns and such, i'd tend to not think it came from here for several reasons. almost every airgun made here is in .22. a few .177 . brass was used extensively as it's easy to work with. another reason is the mechanisms seem a bit more complicated than what would have been made here years ago. even the front site seems more complicated than would be on an older gun here. almost all the older guns are hammer , rolling block types. even saw one with an insert that blocked the hammer from hitting the valve stem, but instead it would hit a firing pin and fire .22 rimfire. the local .22 pellets won't fit regular airguns. too big diameter.the newer guns here are being made with aluminum and steel, still mostly in .22. occasionaly a .25 or .177 if someone can scrounge up a barrel. some import guns here now. not too definitely say not from here, but it doesn't seem to fit what i've seen here. there is a local gun maker i shoot with, next time he stops by i'll show him the pics and see what he thinks. there is another member here that is a filipino, i'll have him check out the pics and see if he has any insight to this mystery.peacekj
Cant you hook a paintball gun tank to it?