Area 419 RailChanger Arm with ARCALOCK Clamp Features The Area 419 RailChanger Arm is machined from 6061-T6 aluminum and finished with a Type III hard coat anodized coating giving it the durability needed for repeated use on the competition line. The ARCALOCK clamp at its base allows the arm to mount to Area 419 s own ARCALOCK rails or to most standard Arca and RRS 1.5 inch dovetail rails making it compatible with a wide range of existing setups. At eight inches long and finished in black the arm offers a sturdy mounting point without adding unnecessary bulk to a rifle or chassis. This combination of materials and finish reflects the demands of PRS style competition shooting. Designed to work with RailChanger equipped support bags the arm lets a bag hang freely and drape over barricades cattle gates or any other obstacle a match director sets up. This hands free arrangement frees the shooter to focus on building a stable position rather than wrestling with a bag during a stage. Because this listing is for the arm and clamp only it is intended for shooters who already own or are adding to a RailChanger bag setup rather than those starting from scratch. For competitive shooters chasing every edge on the clock this arm is a focused upgrade to barricade and positional shooting. Area 419 RailChanger Arm with ARCALOCK Clamp Specifications Manufacturer: Area 419 Model: RailChanger Arm with ARCALOCK Clamp Color: Black Material: Aluminum Length: 8 Weight: 0.40 lbs Available At: GrabAGun