Crosman 13xx 22xx threaded muzzle
Description
Threaded muzzle adaptor for 7/16" barrel. Thread is 1/2-20 UNF Adapter ID is 11.2 mm - teflon tape, glue, scale or ream to fit your barrel. You can scale by % (like 99% or 101%) to get the fit on your barrel perfect. Print the first 5 mm or so and try the fit so you don't waste material an time on the whole thing. Scale as required after that and print the whole thing. I recommend printing with no cooling or up to 25%, vertical with the threaded end up high. Use a good size brim, and tape the brim to the bed so it can't topple over.
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