Thinking about 40 round magazines. Normally I don't like 40s (I usually use a 20 in my retro XM177E2 making it less than 6 pounds loaded). I have tried a few of other peoples 40s in AR15s, and found them unreliable and awkward.

Then I got this Armalite 180. Two of my magazines are AR-180 40 rounders, two are 20s.and seven are 30s. For some reason I love the 40 in the AR-180! Maybe it is because I first used a 40 in my original Sterling that I had in the 80s. I never had a single malfunction with the Sterling 40s in that 180.

Maybe it is because it was the first firearm that was used regularly with 40s which made it very desirable. Maybe because the 40 round magazine we seem to see most in the AR-180s.
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