**Update 8/16/18: Finally got a chance to test in SR25's, and got one now, and found that the upper ridge prevented proper seating in the magwell. I have lowered this ridge by 1mm to help this. I believe many downloaders wanted this for the SR25, and I hope this helps!

This is the final version of https://www.thingiverse.com/thing:2967392 and has been tested to both fit and feed properly. There are 2 versions, one is unsupported and is a hollow shell. The other is a version which includes internal supports to make the mag a bit more durable. I include both versions as the support model take about 50% longer to print.

I will update this file as often as needed, and will hopefully include later shell designs as I work on them.

(Don't mind how my print looks, its a prototype)