Armaspec SLANT Enhanced Combat Button Black. It has the same footprint as a standard OEM button but is designed to match the natural slant of your index finger. This creates a more comfortable and natural magazine release. Specifications for Armaspec SLANT Enhanced Combat Button: Manufacturer: Armaspec Gun Model: AR-10 AR-15 Fabric/Material: Aluminum Country of Origin: USA Features of Armaspec SLANT Enhanced Combat Button Textured surface Small profile made in specialized factories Lifetime Warranty Package Contents: Armaspec SLANT Enhanced Combat Button What firearm models does the manufacturer say Armaspec SLANT Enhanced Combat Button is compatible with? The manufacturer suggests that Armaspec SLANT Enhanced Combat Button is compatible with AR-15 AR-10Armaspec ARM105-BLK: SLANT Enhanced Combat Button Black