[Jeff Rodriguez] has been busy testing a feasible DIY method for rifling a barrel and has found some success using salt water, a power supply, wire, and 3D printed parts to create the grooves of ri… ...

There are five barrel-rifling methods in general use: cut, button, broach, hammer forging and ECM (electrolytic cationic machining). All have their benefits.

Explore the technical process behind crafting barrel rifling, a key feature found in some of the most tightly regulated weapons worldwide. While the intent is purely educational, this ...

EMAG LLC is offering a new, two-spindle ECM rifling machine that provides the same extreme precision and process repeatability as larger models but at a lower price. Firearms manufacturing requires ...

Different machine configurations handle reaming diameters from 0.15" to 0.59" and depths from 24" – 60." Finally, Precihole’s button-rifling machine forms precise barrel grooves at speeds up to 80 IPM ...

The new gun, dubbed the Lulz Liberator, is based on Wilson's Liberator. As the name suggests, it was printed on a fairly humdrum LulzBot AO-101 3D printer ($1,725), with about $25 of conventional ...