Ultradyne USA UD Dyna ARCA Rail 6.15" – Universal Precision Rifle Mounting

The Ultradyne UD Dyna ARCA Rail provides a 6.15-inch mounting platform that enables secure attachment of ARCA-compatible bipods, tripods, and accessories to precision rifles. This rail system offers shooters improved weapon stability and flexibility for positional shooting, allowing quick transitions between shooting positions while maintaining zero integrity. The low-profile design integrates cleanly with modern rifle chassis and handguards without adding excessive bulk.

Constructed from aircraft-grade aluminum with a Type III hard-coat anodized finish, the UD Dyna ARCA Rail is built to withstand field use and environmental exposure. The rail features precision-machined ARCA dovetail geometry for consistent, repeatable lockup with compatible accessories. Installation typically requires direct mounting to M-LOK, KeyMod, or Picatinny-equipped forends depending on rifle configuration, with hardware included. The 6.15-inch length provides ample adjustment range for optimal bipod or support positioning.

• Type: ARCA Rail
• Compatible Firearms: Universal (rifles with M-LOK/KeyMod/Picatinny mounting systems)
• Material: Aircraft-grade aluminum
• Finish: Type III hard-coat anodized
• Length: 6.15 inches
• Adjustable: N/A (rail accepts adjustable accessories)
• Installation: Direct mount to M-LOK/KeyMod/Picatinny forends