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 ...

To be safe, cut and fit your dovetails before measuring the exact lengths of the shelf and the upper and lower stretchers.

The head of the Regional Emergency Medical Services of New York, who once worked as an FBI agent for a little over a year, ...

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 ...

collet, a large-diameter bit and a simple jig will do the trick ... I used the bit shown at left that came with a door-making ...

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 ...