Has anyone here used the ASC Magazines? I noticed that the reduced capacity mags are crimped on the corners to only allow 10 rounds. I disassembled  a 20/10 to measure the spring, compared to an M16-20 rounder I brought back from Vietnam as a souvineer and the springs are exactly the same. If shtf and you needed to use one with 20, then use a dremel to remove the crimps and you will have a 20 round mag, the same with the thirty rounders reduced to 10.  I wouldn't do it unless our government went down the drain and we had to fend for ourselves but I was just wondering everyones thought on the ASC magazines???

I can't speak for the "reduced capacity" mags, but I do have three of the ASC 20rd mags (I can only get 19 in each) that have run well for me. I generally stick with PMAGs and D&H. I recommend looking into the MAGPUL or D&H lines for their 10-rounders u nless it is the looks you are going for.