VFC x BCM 140 Round Mid-Cap Magazine for M4 / M16 Airsoft AEG Rifles
(Color: Black / Set of 3)

"These mags work great for ICS guns that have those first 20 or 30 round robbers. Fixes that. They have a lil slop but can be fixed with a shim, or tape in the mag well

"I bought these with the hope of them being a more secure/snug fit in my VFC HK416D. The good news is that they do fit, but the not-so-good news (in my situation) is that these are otherwise dimensionally and functionally identical to the MAG 130-round midcaps I was using before, other than the fact that these ones hold slightly more BBs.

You get three of these for $39 (at least as of this review), but for that price, you could get something cheaper that performs just as well. I'm giving them a 4/5 for overall function - nothing special, though they're not bad in any way function-wise. Just know that you're paying a bit more for these magazines than you would be for something lower-cost that functions just as well.