The diagonal slot was harder. I couldn’t make a straight cut diagonally on the mill, so I had to somehow fixture the part at an angle. ..I didn’t really want to make a jig for this one cut.

I thought about it for a bit and realized that if I cut the corner off now I can use the scrap piece to hold the part at the right angle like so:

The diagonal slot and the tapered front are parallel, so it works out.

To keep the pieces from slipping I put a threaded rod through both pieces. (I drilled the bolt holes first).

And cut. mrrrrrrrrrrrrrr. The quarter inch endmill isn’t long enough to do the whole depth at once so I had to flip the piece after this and make the other half of the cut.

To finish the stock up, I put a 5/8″ endmill on the lathe and used it to counter-bore the bolt holes. Because the centers were already drilled plunge cut went really easy.

Looks awesome! That’s one part down. The right bolts hadn’t come in yet, but I really wanted to get it mounted so I scavenged some bolts from around the shop.

Next up: mounting the ak47 grip.

Attaching The Grip

Attaching the grip will be straightforward, but a bit tedious if I want to do it right. AK grips are designed to bolt onto a mounting boss on the lower receiver. I’ll have to make one for my stock.

You can see the mounting boss in this exploded view.