Customer Reviews for Thermold 30 Round Black Mag For M16/AR15 w/Optional 45 Round

It works, but I'm not going to buy another. Came with rusty spring and the expand/contract function for choosing capacity doesn't work very well and is a major pain to do (especially expand). Okay for range day but wouldn't use for any sort of duty/defense application

Great concept for mag extension

These mag's have a very stiff spring that makes it difficult to fully load 45 rounds. I filled and emptied several times trying to break them in but to no avail. Then I bought the automatic loader and that made the whole project easier. Bought a different brand for my son in law and it loaded right up with no problem.

This product works great. I received the product quickly but it did have a rusted spring. After oiling the magazine it feeds excellent.

This looked like a great alternative to the standard 30 round magazine. The lower expansion works like a charm. There is a slight difference in the sping tension when expanded, but not enought to make a difference when feeding bullets up. I will definitely be buying some more of these.