I bought these springs to replace the feed springs in my Dye DAM 12 round magazines (don’t know why they’re called 10 round mags), which are really hard on paint and much stronger ... view morethan they need to be. Just take one 30 round Dmag spring, cut it precisely in half with a pair of dikes, and you have the exact lengths needed for two replacement springs in one Dye DAM mag. When swapping the springs, it’s best to place the cut ends on the followers. Reassemble and now you have a DAM magazine that still feeds extremely fast, but is far gentler on paint, is much easier to reload, and even has additional room to squeeze in another 2 paintballs for a total of 14 rounds of Valken Graffiti without dimpling them. There mod is all pros and no cons. If you use DAM mags, do this. view less