Why does anybody change anything, all kinds of reasons....maybe they are bored, they want a different look, how about so it works better for them, etc. Thats why there are companys out there making aftermaket products, Magpul,Tapco, UYG, to name a few. Stippling the mags.... I'm just looking to get a better grip when handling them and yes I know not hold the mag when firing the rifle. Please excuse me for the rant, but from what I have read (on this web site and others) most people have do one thing or another to their rifle.