Ar15.com user [HaveBlue] has been working for some time on a 3D printed lower receiver, and now reports that the parts are fully working. Using a Stratasys 3D printer from the 90’s [HaveBlue ...
Armaspec’s Stealth Recoil Spring, currently in its fourth generation, is a self-contained upgrade to the AR-15’s standard buffer and spring—and the company now offers the unit as a kit that ...
The Final Rule expanded "firearm" to include "a weapon parts kit that ... an AR-type firearm, which is why the government virtually neglects the subject. To complete an AR lower receiver from ...
Now [jgpeiro] has made one which is light years ahead of the toy kits, using a Raspberry Pi Pico, a 100 MHz ADC, and an effort to design a better input circuit. At its simplest this could be a ...