Tag: l james sullivan

L. James Sullivan’s Rifle Patent – The MGX

Posted December 9, 2014 in AR-15, Guns & Gear by Nathaniel F with 30 Comments

In 2012, AR-15 designer Jim Sullivan applied for a patent for a new rifle design. Apparently based on his Ultimax 100 light machine gun, the rifle features a quick-change barrel, a guide-rail-less receiver with a “backbone” guide rod attached to the lower [Read More…]

Two Interviews With The Designer Of The AR-15, L. James Sullivan

Posted December 1, 2014 in AR-15, Guns & Gear, Other Gear & Gadgets, Rifles by Nathaniel F with 27 Comments

InRange has an excellent interview (and range video!) with Jim Sullivan, a designer of the AR-15, Ultimax 100, Mini-14, and other firearms. In it, they get to fire Sullivan’s improved M4, which is more tolerant of sustained fire and employs the “constant [Read More…]