This is really spreading like a Virus! But how can a plastic gun barrel stand up to the heat and pressure of a regular Cartridge and Bullet? Hal
I don't know enough about it yet but I did see an insert that can be put in a plastic gun for the extra force. We had inserts to go into plastic flare guns used by boaters so you could put in a small caliber shot gun shell for protection. It was illegal but it woulds save you when you where anchored in a strange place. There was nylon 22 for sale when I was young don't know just how much was nylon.
I've read that you can't expect a 3D plastic gun to last very long but my question would be, what is the sign that it's worn out? When it blows up in your hand?
@Hal Pollner @Martin Alonzo @Ken Anderson The "poop" on plastic guns: no plastic barrel will withstand 30,000 psi of pressure. Tensile strengths of plastics range from around 1,000 to 12,000 psi, that latter being for Nylon. The Remington Nylon 66 .22 rifle had a standard steel barrel and operating mechanism, with a nylon stock. "The Remington Nylon 66 is a rifle manufactured by Remington Arms from 1959 to 1989. It was one of the earliest mass-produced rifles to feature a stock made from a material other than wood." (See: https://en.wikipedia.org/wiki/Remington_Nylon_66) There is a reinforced "plastic" called "Glass-Epoxy" having a tensile strength of 38,000 psi, still too low for most handgun ammunition, and I suspect it's too brittle, and may not be compatible with 3-D printing. Another smokescreen blown like that for the Glock "plastic" pistols, as capable of being detected as any other. Now, if any of you recall a movie with John Malkovich, in which he hand-fashioned a small .22 caliber handgun of wood, undetectable, to assassinate a politician? Frank
@Frank, that movie was "In The Line Of Fire", with Malkovich and Eastwood. Malkovich killed 2 duck hunters who wanted to "try out" his newly-invented non-metal handgun, killing 2 swimming ducks just for sport. Hal
@Hal Pollner Thanks! I had only seen short bits and pieces, never the whole flick. Really liked Malkovich in "Con Air"! Frank