The Strike M-LOK ARCA Rail Adapter enables easy mounting on ARCA Swiss mounts. Angled front corners to reduce snagging during ARCA mount insertion. Securely and conveniently adapter M-LOK to ARCA Swiss. Threaded holes along adapter rail for SI ARCA accessories. Machined from 6061-T6 aluminum, ARCA Swiss mounts have become the industry standard. With the Strike M-LOK ARCA Rail Adapter, you get a low-profile lightweight option to adapt most M-LOK surfaces. Includesx1 Strike M-LOK ARCA Rail Adapter - 6.8"x4 Screwx4 Nutx1 Torx tool T15x1 Loctite Threadlocker Blue 243 FeaturesEnables easy mounting on ARCA Swiss mountsAngled front corners to reduce snagging during ARCA mount insertionSecurely and conveniently adapt M-LOK to ARCAThreaded holes along adapter for SI ARCA accessoriesLow-profile and lightweightMachined from 6061-T6 aluminum Note: 6.8"adapter requires minimum of four (x4) consecutive M-LOK slots + room for adapter plate