Primary Weapons Systems (PWS), founded in Boise, Idaho have broken out into the firearms market as makers of superior quality weapons accessories. Constructed from T6 6061 grade Aluminum, the MK110 rail system is second to none for quality and durability. The unique build design of the rail allows the side rails to be removed without entirely removing the rail system. Overall, this rail system measures in at 9.5" allowing the operator to attach nearly all picatinny/weaver mountable lights, lasers, grips, underbarrel launchers, cameras, and more. If you're looking to make your airsoft rifle stand out above the rest, the PWS MK110 rail system is a sure-fire choice.