Magpul Industries QR Rail Grabber, Developed Primarily For Magpul Bipods, True Quick-Release Plate That is Compatible With a Wide Variety of Products That Use The A.R.M.S. 17S Style Footprint, Compatible With Both Picatinny and RRS/ARCA Interfaces, Aluminum, Black MAG1196-BLK Model: QR Rail Grabber Fit: A.R.M.S 17S Style Type: Bipod Manufacturer: Magpul Industries Model: QR Rail Grabber Mfg Number: MAG1196-BLK