Hera Arms H3T GEN 2 Transparent Frame 30-Round Polymer AR-15 Magazine - Olive Drab Green

This is a quality magazine that works quite well. The only reason I gave it 4 stars instead of 5 is that there is no provision for the magazine to accept a spoon (adapter) from stripper clips.

Doesn’t do well with 300 blackout rounds. Mag seems to stretch if you leave them loaded and spits rounds out fairly easy

Right now this mag is my favorite. Ive compared it to Gen2 Pmag, and Lancer Arms clear mags. Pmags was my go-to mags but after my LGS introduced me to these Hera Arms mags I could not wait to try them out. They look great and functions great. Feels smoother than my Pmags and outperformed the Lancer mags in every way.

I'm building an anodized OD Green AR15 with Hera Arms OD Green grip and stock. The Hera Arms OD Green is a near perfect match to my anodized lower and handguard.
I also have a few OD Green Hexmags and they are a lot more gray than green, so I prefer the Hera Arms for my rifle.
Unfortunately, the Hera Arms mags have a few drawbacks. The plastic feedlips are painfully sharp and they are noticeably less rigid than the Hexmag plastic feedlips. I can easily flex the Hera Arms feedlips with my fingertips. May not matter in real life, but does make these seem kinda cheap.
If you want to match true OD Green, these are the better choice. But I wouldn't recommend these for build quality.

I bought this magazine to give it a try. It claims it can hold the 300 Blk. I recently got a Wilson Combat 300 Ham'r build and a magazine that can accept a 300 blk will be able to use the 300 Ham'r as well. And so it was true. 300 Ham'r functioned in this magazine without issues. For the price and the unique design, plus durability you can't beat. You won't know until you try it and there's always a first time for everything.

Will buy more, had a great time with these mags. Love the window feature and overall looks too

Great design and feel. Waiting on them to make a coupler for them to make it even better.