Meta Tactical VFG Glock 9mm/.40 Spare Double Stack Magazine Grip Black. 40 S&W Spare Magazine Holder. Integrated easy to use push button release. Mount your Spare magazine VFG to any Picatinny rail system. Works great with Glock factory magazines and aftermarket magazines including extended and drum mags. Specifications for Meta Tactical VFG Glock 9mm/.40 Spare Double Stack Magazine Grip: Manufacturer: Meta Tactical Color: Black Finish: Nitride Gun Make: Glock Fabric/Material: Chrome Moly Mount: Picatinny Grip Type: Vertical Grip Condition: New Mount Type: Picatinny Attachment Type: Picatinny Features of Meta Tactical VFG Glock 9mm/.40 Spare Double Stack Magazine Grip Made for Glock 9mm and .40 double stack magazines Drop your magazine extended mag or drum with the push of a button Integrated Hand Stop Ergonomic Design Matches perfectly with your APEX Bullpup Conversion Kit Package Contents: Meta Tactical VFG Glock 9mm/.40 Spare Double Stack Magazine Grip 2 x Fastening Nuts 2 x Fastening Screws 1 x Allen Key Meta Tactical MTA-G-VG9: VFG Glock 9mm/.40 Spare Double Stack Magazine Grip Black