$62.99
3 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The Ultradyne UD Arca Dynalock Rail solves a common headache for precision rifle builders who want tripod and bipod flexibility without swapping hardware every time they change setups. This 12.45-inch rail bolts straight onto M-LOK handguards and gives you a dual-purpose mounting surface that accepts both traditional Arca clamp accessories and Ultradyne's own Dynalock attachments. It comes machined from 6061-T6 aluminum with a hardcoat anodized finish, so it holds up to hard field use while keeping glare down when you are behind glass.
The real draw here is versatility. Run an Arca clamp for your tripod, clamp on a bipod, or step up to the Ultradyne Orbit Ballhead using the Dynalock interface for a stable, repeatable shooting position. Because it uses standard Arca geometry, it plays nice with the wide range of Arca-compatible clamps and adapters already on the market, so you are not locked into a single brand of gear.
This is the longest option in the lineup at 12.45 inches, which gives you a generous span of real estate to slide clamps and adapters exactly where they balance best. The hole spacing is set up specifically for M-LOK, and this length ships with the fasteners needed to mount it. Installation is straightforward with basic tools, or you can hand it off to a gunsmith if you would rather have someone else torque it down.
At roughly 8.4 ounces, it adds noticeable but manageable heft to the front of a precision gun, which is a fair trade for the stability a long Arca surface provides. The 1.50-inch width and low-profile height keep it out of the way of your support hand, and the black anodized coating shrugs off the scuffs that come with real range and field time. For anyone building out a PRS-style rig or a bench setup that leans on tripod work, this rail earns its spot.
It accepts both standard Arca clamp accessories and Ultradyne's Dynalock attachments on the same surface. That means you can run Arca-compatible tripod adapters, bipods, and clamps, or mount the Ultradyne Orbit Ballhead using the Dynalock interface. Since it uses common Arca geometry, most Arca-style clamps on the market will lock right on.
It mounts to any M-LOK compatible handguard using the fasteners that come in the box. The hole pattern is set specifically for M-LOK spacing, so it lines up cleanly. You can install it yourself with basic tools or have a gunsmith set it for you.
The 12.45-inch rail gives you the most mounting real estate in the lineup, which is handy for dialing in balance and positioning multiple accessories. It is the go-to length for full-size precision builds that rely on tripod work or need room to slide clamps fore and aft. Shorter options exist if you want to trim weight on a more compact setup.
This length weighs about 8.4 ounces, so it adds real but manageable weight to the front end. It is machined from 6061-T6 aluminum with a hardcoat anodized finish to keep it durable without going overboard. For a precision rig, that weight up front actually helps steady your hold.
| UPC | 850043428466 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | UD20083 |
| Color | Black |
| Length | 12.45'' |
| Model | |
| Product Type | Rail |
You must be logged in to post a review.
Reviews
There are no reviews yet.