Area 419 ARCALOCK Rail Features The Area 419 ARCALOCK Rail uses serrated rail sides that interface with Area 419 s proprietary clamp to mechanically lock the rail in place meaning no movement is possible once secured. These serrations are designed to grip without being sharp enough to damage bags or hands a detail that matters during long days behind the rifle. Because it is built to the RRS 1.5 inch dovetail standard shooters can be confident that lever clamps from that standard will mount correctly. Every corner is radiused and every edge chamfered during machining a slower process that Area 419 chose specifically to eliminate sharp edges on a rail that gets handled constantly in the field. Built specifically for current production Barrett MRAD and MK22 rifles with the M-LOK forend the ARCALOCK Rail attaches at up to four points for maximum strength and stability on a rifle that sees hard use. The Type 3 hard coat anodized Flat Dark Earth finish adds durability while matching the tactical color scheme common to the MK22 platform. Made from 6061-T6 aluminum sourced and machined entirely in the USA the rail is backward compatible with standard Arca accessories though it will not lock without the Area 419 clamp. For shooters running an MK22 in competition or the field the ARCALOCK Rail is a dependable upgrade for sale at GrabAGun. Area 419 ARCALOCK Rail Specifications Manufacturer: Area 419 Model: MK22 Color: Flat Dark Earth Material: Aluminum Finish: Type 3 Hard Anodize Length: 14.75 Height: 1.50 Width: 1.50 Compatible Hosts: Barrett MRAD MK22 Includes: Mounting Hardware Weight: 9.28 oz Available At: GrabAGun