N/A FX Impact M4 or something else?

the iguana hunters mags are nice for 40 each. you can get colors.
his are the best other than stock ones imho
they are 3d printed but I have yet to have one fail. I only have stock mags and his.
I was worried to get the aluminum ones. I didn't want them scratching my gun by chance.
I was going to try the Orion mag, but the lid is covering the pellets and can't tell how many shot left, the etsy one is visible and can see all the pellets loaded so i went with those instead. The Eagle Vision aluminum mag has stronger spring tension for slugs but pellets are working fine, it's rock solid and i love it, but the plastic or 3d printed one should work just fine.