I still haven't even tried it on a 22... been bogged down with other work but I was thinking a 9mm upper would probably work as well plus I have a couple of 5.7x28 uppers here I might try out when time permits they don't have much recoil but they use a different system for the buffer so might be worse....]]>couple notes for all the printed gun people.
1. Printed lower in ABS works fine as long as you dont set it up with a .223 upper (stick to a .22 upper)
2. I think if you could print one out of Taulman 618 it would easily hold up to 1000+ rnds of .223
]]>the trigger guard broke so i had take it off but it should work
]]>ok i'm posting a new stl for a 3 part practice gun i've included an area to add weights. The new design works with the handle for a ar15 lower and is only partially based off of an ar 15 lower these should print a little better and be able to be glued together with just a little bit of work
]]>sorry i reread and had to correct the problem was in the upper not the lower as previously indicated. I've talked with several of the peopel involved in the project at defcad.org in the chatroom. they doe stimate the SLA upper would have worked for over 1000 rounds but they ran our of ammo.
we ran a cost analysis on it and a printed abs lower at a 60% infill would cost $4.41 if the abs was $42 per kg and you could print approximately 10.6 units per kg
]]>i am currently seeing some lift on the barrel end i've been avused i should have used soem abs glue shrug we'll worry about this alter however
Personally i think if i build an encliosure to retain heatit would be far better than glue
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