4 ms·

You are tremendously underestimating how far 3d printed guns have come in the last year or two. In specific the Glock lowers are good for hundreds of rounds (v

You are tremendously underestimating how far 3d printed guns have come in the last year or two. In specific the Glock lowers are good for hundreds of rounds (vs having to load a shell at a time like a zip gun) and are just as accurate and useful as the real thing.

Pinckney 7y ago
Electrochemical machining also looks like a promising way to rifle barrels at home without specialized equipment, and can in theory be assembled with other 3d printed components.
LyndsySimon 7y ago
I think you might be underestimating what a "zip gun" can be. Yeah, a "bang stick" is a couple of pieces of metal pipe with a nail for a firing pin. It works once with a 12ga shotgun shell - but a Sten SMG can be made from the same sort of materials, and is an effective SMG. They cost about $10 each to make in 1942. Plans are dead simple to find: https://duckduckgo.com/?q=sten+plans&ia=images&iax=images https://duckduckgo.com/?q=sten+plans&ia=images&iax=images Here's a thread on another forum where a guy builds an AK receiver (which is much more difficult to get right) from a shovel: https://www.northeastshooters.com/xen/threads/diy-shovel-ak-photo-tsunami-warning.179192/ https://www.northeastshooters.com/xen/threads/diy-shovel-ak-... Check out this 9mm machine pistol, produced by R9 Arms: https://www.thefirearmblog.com/blog/2015/08/11/mystery-9mm-machine-pistol-seized-europe/ https://www.thefirearmblog.com/blog/2015/08/11/mystery-9mm-m... There's one problem with that - there is no such company as "R9 Arms". These things have been showing up all over Europe for the past few years, and they're definitely a "professional" product... made by a company that doesn't exist. The best guess is that they're being made somewhere in Croatia, but to my knowledge that's based only on the fact that several were seized there shortly after they appeared. The fact is, it's easy to make a firearm. It's actually easier to make a full-auto firearm than it is to make a semi-auto - a semi-auto is effectively a full-auto with an extra design step to include a disconnector that prevents it from continuing to fire.

Pinckney 7y ago

Electrochemical machining also looks like a promising way to rifle barrels at home without specialized equipment, and can in theory be assembled with other 3d printed components.

LyndsySimon 7y ago

I think you might be underestimating what a "zip gun" can be. Yeah, a "bang stick" is a couple of pieces of metal pipe with a nail for a firing pin. It works once with a 12ga shotgun shell - but a Sten SMG can be made from the same sort of materials, and is an effective SMG. They cost about $10 each to make in 1942. Plans are dead simple to find: https://duckduckgo.com/?q=sten+plans&ia=images&iax=images https://duckduckgo.com/?q=sten+plans&ia=images&iax=images Here's a thread on another forum where a guy builds an AK receiver (which is much more difficult to get right) from a shovel: https://www.northeastshooters.com/xen/threads/diy-shovel-ak-photo-tsunami-warning.179192/ https://www.northeastshooters.com/xen/threads/diy-shovel-ak-... Check out this 9mm machine pistol, produced by R9 Arms: https://www.thefirearmblog.com/blog/2015/08/11/mystery-9mm-machine-pistol-seized-europe/ https://www.thefirearmblog.com/blog/2015/08/11/mystery-9mm-m... There's one problem with that - there is no such company as "R9 Arms". These things have been showing up all over Europe for the past few years, and they're definitely a "professional" product... made by a company that doesn't exist. The best guess is that they're being made somewhere in Croatia, but to my knowledge that's based only on the fact that several were seized there shortly after they appeared. The fact is, it's easy to make a firearm. It's actually easier to make a full-auto firearm than it is to make a semi-auto - a semi-auto is effectively a full-auto with an extra design step to include a disconnector that prevents it from continuing to fire.