Ultradyne UD Dynalock ARCA Rail, 6.15-inch

The Ultradyne UD Dynalock ARCA Rail in 6.15-inch (Ultradyne part no. UD20081) installs onto an M-LOK handguard using the fasteners provided, or through a qualified gunsmith if you prefer. Ultradyne built the Dynalock Rail to bring both Arca and Dynalock compatibility to the same forend, most notably opening up use of Ultradyne’s Orbit Ballhead with Dynalock. Every other standard Arca clamp accessory on the market is compatible as well. At 6.15 inches, this mid-length option gives more mounting surface than the 3-inch version for shooters who want additional bipod or tripod positioning options.

Key Specifications

• Installs directly onto an M-LOK handguard using the included fasteners.
• Opens up compatibility with Ultradyne’s Orbit Ballhead via the Dynalock mount.
• Compatible with standard Arca clamp accessories beyond just Ultradyne’s own Orbit Ballhead.
• A 6.15-inch mid-length option, giving more mounting surface than Ultradyne’s shortest 3-inch rail.

Frequently Asked Questions

Do I need a gunsmith to install this rail? No, it installs using the M-LOK fasteners provided, though a qualified gunsmith can install it if you prefer.

Will this work with any Arca clamp accessory? Yes, in addition to Ultradyne’s own Orbit Ballhead, all standard Arca clamp accessories are compatible.

Buy the Ultradyne UD Dynalock ARCA Rail, 6.15-inch

Order it from our Lubbock, Texas gun shop for fast, direct shipping and open up Arca and Dynalock mounting on your rifle. Browse more gun parts and accessories while you’re at it.