Bought for 80%arms 308 build - ODIN Works Extended Magazine Release

Milled an 80%Arms lower and was not feeling the standard length shaft mag catch and standard mag release button because of the increased width of the 308 receiver. Ordered this and a KAK Industries extended shaft mag catch.

What appears to be a 90 degree angle on the bottom of the ODIN Works XMR that is supposed to wrap around the the receivers milling is actually more like 87 degrees. The 80%arms lower receiver is a sharp 90 degree angle which means the lower interferes with the XMR's operation. After 20 minutes of gentle filing on this angle of the XMR, I was able to increase the clearance and get it to function.

However, the reason I gave four stars and not five is because you cant apply pressure to the very tip of the mag release and get a positive release. Pressure must be at least applied to the top of the allen screws, not a huge deal. It's also real comfy, and the allen screws act as a sort of braille for perfect finger position.