I have plastic AR lowers that are still working perfectly after thousands of rounds. If you use a monolithic design (built-in buffer tube & pistol grip) and mak

I have plastic AR lowers that are still working perfectly after thousands of rounds. If you use a monolithic design (built-in buffer tube & pistol grip) and make it out of glass-filled nylon, it's as durable as an aluminum lower.[1] I could see a push for treating pressure-bearing parts as firearms, but I don't think it'd fly federally. Also unless you required everyone to serialize their existing barrels (which amounts to registration) it'd be impossible to convict anyone unless you could prove they made the barrel after the law was passed. Then you'd get into questions such as, "What is a barrel?", because at some point you're just banning certain diameter pipes. If someone invents a new caliber, does that mean we have to restrict pipes of that diameter? It quickly gets absurd. And considering the pace at which fabrication technology is improving, I doubt such restrictions would do much in the long run. 1. You can even do push-ups on it: https://twitter.com/DrDeath1776/status/1568280857835610113 https://twitter.com/DrDeath1776/status/1568280857835610113