Perfect fit right out of the package - Wilson Combat Extended Magazine Release

While others have said that they needed to use emery cloth to remove some material and fine-tune fitment to the particular application of their pistol, I didn't have that issue. I was able to remove the original magazine release button from my Springfield Armory 1911 Emissary 9mm and drop this right in. I tested with several different magazines and experienced no issues whatsoever. This is a really nice addition to your pistol if you're looking for a way to speed up reloads (or you just don't have the biggest hands). Highly recommend. Typical quality and fit from Wilson Combat.