Guntec USA AR-15 Mag Catch Assembly with Extended Mag Button Black. Our goal is to distribute excellent quality at an economical value. Specifications for Guntec USA AR-15 Mag Catch Assembly w/Extended Mag Button: Manufacturer: Guntec USA Gun Make: AR Platform Gun Model: AR-15 Weight: 0.8 oz Condition: New Features of Guntec USA AR-15 Mag Catch Assembly w/Extended Mag Button Includes Mag Catch Mag Catch Spring Extended Mag Catch Button Package Contents: Guntec USA AR-15 Mag Catch Assembly w/Extended Mag Button What firearm models does the manufacturer say Guntec USA AR-15 Mag Catch Assembly w/Extended Mag Button is compatible with? The manufacturer suggests that Guntec USA AR-15 Mag Catch Assembly w/Extended Mag Button is compatible with AR-15GUNTEC USA GT-MC-ASSEMBLY: AR15 Mag Catch Assembly with Extended Mag Button Black