Im going to build a big scary assault rifle and there’s nothing you can do about it !?
Look:)
just bend and weld
http://armsofamerica.com/ak4774receiverflatandrails.aspx
ak bending jig, make 500 ak receivers a day!
HK91 G3 receivers
http://www.gunsamerica.com/913691877/Non-Guns/Gun-Parts/Military—American/Hk_receiver_flat_HK91_SAR8_PTR91.htm
ak parts kit
https://www.apexgunparts.com/product_info.php/products_id/1495
for full auto colt AR just grind and drop this thingy in
tube guns, can be made from plumbing parts and springs
http://forums.gunboards.com/showthread.php?182600-STEN-MKIII-kits-NOW-60-at-APEX-Gun-Parts
Build your own dedicated silencers
http://www.silencertalk.com/forum/
ATF need not apply!
Help yourself.
How to rig a tube jig