Saber Tactical FX Impact Low Profile Arca 3 Rail - Compact Durable matte black 6061 T6 anodized aluminum construction T-slots on bottom and sides for T-slot or M-LOK accessories 1/4" x 20 hole for standard tripod attachment Quick-disconnect holes on both sides Nylon-tipped set screw to avoid flex against bottle Includes extended magnetic dust cap Length: 11.25" from end to trigger guard Fits FX Impact