Good Golly whatta tool. A'way back when a few of us bought a "Super Jig" was it ever a flop. However, after welding, redrilling & bushing the fukker, the nine of us managed to limp that cast iron pig weight through about a dozen rifles. Now, three years later I bid & buy a CNC'd AR15 jig from Snelling at the TanneryShop...I figger'd, wtf. I tell ya, the damn thing arrived & it is the BOMB. It cost 1/3 of the Super Pig Jig & I'm just itchin' to cut a new lower. Thank You Justin, ya CNC Razorback ) All Good...Bud