Area 419 ARCALOCK 12" M-LOK Dovetail Rail, Flat Dark Earth

Area 419 ARCALOCK 12" M-LOK Dovetail Rail System

Area 419 engineered the ARCALOCK to solve a persistent problem with traditional ARCA rails: they slide under pressure, even with barricade stops. This 12-inch rail introduces mechanical locking to the proven dovetail standard.

Key Features

Mechanical Locking Design

• Serrated rail sides interface with Area 419's proprietary clamp design to lock the rail in place with zero movement
• Serrations are smooth and safe—they won't damage shooting bags or your hands
• Backwards compatible with standard ARCA accessories, though locking requires Area 419 clamps

Practical Engineering

• 12 inches long covers the full length of your stock forend for maximum attachment flexibility
• Weighs only 4.1 ounces—minimal impact on your rifle's balance
• M-LOK slots on the underside let you attach any M-LOK accessories directly to the rail
• Comes with all M-LOK mounting hardware

Build Quality

• Made to the RRS 1.5" Dovetail Standard for compatibility with lever clamps
• Constructed from 6061-T6 aluminum with Type 3 hard coat anodizing
• Every corner is radiused and every edge chamfered—no sharp edges
• Manufactured in-house in the USA on USA-made CNCs from USA-sourced aluminum

Note: This rail requires 6 consecutive M-LOK slots to attach. If your stock has fewer M-LOK slots, consider a 12" universal rail with M-LOK attachment nuts instead.