Geissele’s MK18 M-LOK/Arca-Swiss Super Modular Rail is an ideal upgrade for any AR-platform intended for competition, and is specifically designed for seamless Arca-Swiss interface. Based off the MK16 M-LOK Super Modualr Rail, the MK18 Rail features a small diameter, low overall height, and a slim profile making it perfect for competition shooters. The base of the MK18 is flat and is outfitted with a 35mm wide, 45° “Arca Style” dovetail for fast mounting to a quick-release base, and allows the rifle and tripod to be slid into any position on the rail. The MK18 utilizes Geissele’s proprietary 2.25” long barrel nut to interface with the receiver, results in a platform that can be trusted to be straight and true the entire length of the rail. Other features of the MK18 include M-LOK mounting points in the 3 o’clock, 9 o’clock, and 6 o’clock positions, as well as in the upper 45° locations to make customization options virtually unlimited. In addition, the MK18 Rail is precision 3D machined from 7000 series aluminum for excellent strength without adding any unnecessary weight, and is available in either a black or Geissele DDC finish.

Features of the MK18 M-LOK/Arca-Swiss Super Modular Rail:

• Compatible with mil-spec AR15 pattern rifles
• 35mm wide, 45° “Arca Style” dovetail – seamless interface with Arca quick-detach bases, allows tripod to be slid into any position on the rail
• Geissele’s proprietary 2.25” long barrel nut to interface with the receiver for straightness and rigidity
• M-LOK mounting points in the 3 o’clock, 9 o’clock, and 6 o’clock positions as well as in the upper 45° positions
• Precision 3D machined from 7000 series aluminum
• Available in either a black or Geissele DDC finish