The Area 419 Firearms LLC ARCALOCK Rail for Barrett MRAD MK22 Sniper System delivers a precision, field-ready solution for current production MK22/MRAD rifles with an mlok forend, replacing older circular-hole configurations that arent compatible, and offering a true locking interface that requires the Area 419 clamp to achieve full security. This rail features serrated sides that engage a proprietary clamp design to mechanically lock the attachment in place with no movement, while keeping the serrations non-abrasive to bags and hands. It is backwards compatible with standard Arca accessories, but locking functionality remains dependent on our clamp, ensuring maximum stability across use cases. Extending along the full length of the new Barrett MRAD forend and stopping at the handguard end, the rail is built to the RRS 1.5" dovetail standard so lever clamps will work reliably. No sharp edges are left exposed, as every corner is radiused and every edge chamfered during manufacture, and the assembly is supported by 6061-T6 aluminum with a Type 3 hard coat anodized in FDE for enhanced durability. Made in-house in the USA from USA-sourced aluminum and designed to attach to the rifle at up to four points for maximum strength and stability.