This is a TangoDown Tool, model GMRT-01.
You can keep your magazine well pristine and working like a combat pistol should with the GMRT-01 tool. Its specially formed tip is shaped to release the magazine release spring with maximum bite and leverage. You'll notice the rounded tip is also highly polished stainless steel" that can't damage the mag well or mag release.
Features:
Ergonomic Handle
Highly Polished Stainless Steel Tip
Corrosion-Free