Magpul Industries M-LOK Dovetail Adapter, Compatible RRS Dovetail Standard Compatible Accessories, Pro Chassis Full Rail, Aluminum, Black MAG1053-BLK The M-LOK Dovetail Adapter features multiple drilled and tapped holes that are optimally located to limit overall travel of accessories. It has comfortable" yet functional" snag-resistant beveled edges. It also includes a hardware access feature to allow removal of the front action screw on a rifle mounted on a Magpul Pro 700 rifle chassis without the need for removal of the Dovetail Adapter from the chassis