I wanted to like this dust cover... - Magpul Industries Enhanced Ejection Port Cover

But as a few other reviewers have pointed out, this cover just will not stay closed. I have used several other polymer dust covers and this magpul one just doesnt provide any advantage over even a polymer cover by UTG.

I think the inner part of the cover was overmolded so it makes contact with the bcg. And since their detent isnt adjustable, the cover wont hold. You can put it in the closed position, but the slightest movement will jostle right open.

Since it really isnt worth the time to send back, i may just file down the overmold inner portion to see if it fixes it.