Modified 4 round flush mag

[MOW]

Performed the mod, it works well. I didn't cut the spring, it holds 4 rounds and cycles like the 5 rounder. I used a hacksaw with a fine blade (I tried the dremel, but I couldn't go slow and control it.) and a utility knife for finishing cuts. Sandpaper stapled to a piece of wood help finish some of the hacksaw cuts. Now that I know what I'm doing, I may perform mod to the inside of a 5 rounder.