Some of this may sound stupid but i m having no luck finding out what kind of barrel thread and feedneck thread the promaster is. Someone please help me.
If any else has any other questions they would like to post feel free
I'm not sure, but I think the barrel thread is Autococker, and the feedneck is Impulse. I know that's what it is for the B2K4, but not sure on the Promaster. If you have any Autococker threaded barrels lying around/on another marker, test it out, just don't force it if it isnt a perfect fit.
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i know they're cocker barrel threaded. says so on thier home site
I also believe ryan's right about teh feedneck threading. it's darn good thing too because the bushys ICD threading makes it hard to find cheap feednecks