Quote:
Originally Posted by nwcid
I think the 20's are more popular since guys use guns with bipods. When using a bipod 30rd mags hang down too far. I use 20's in my guns that I use off bipods.
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I agree, I think the 20 rnd mags are more a preference of length. I have used 30rnd Pmags and 30rnd Cproducts magazines without an issue.