My 3 round long action billet mag finally showed up from Mountain Tactical this afternoon. Very nice and appears to be very well made, however when I went to put it in my gun it didn't fit. I have the MT bottom metal on the gun and don't recall reading anything about these mags not working with their bottom metal, but they no longer have the 3 round mags listed on their website so I can't go back to check and they were closed today and wont be back open until Monday. So my question is do these only work with the factory plastic bottom metal? The problem with it fitting is that the way the mag flares at the bottom it doesn't allow the mag release to fully engage.