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Ultradyne USA UD Arca Dynalock Rail
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Ultradyne USA

UD Arca Dynalock Rail

$39.00
Available California compliant

Ultradyne USA UD Arca Dynalock Rail, MLOK Compatible, 3" Long, 2.1 OZ, Aluminum Construction, Anodized Finish, Black UD20080

Key Details
Brand Ultradyne USA
Manufacturer Part Number UD20080
UPC 850043428435
SKU UD20080
Current Stock 11 available
Quantity Updated Apr 19, 2026 8:55 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

The UD Arca Dynalock Rail can be installed using the M-LOK fasteners provided or by a qualified gunsmith. By upgrading to the Arca Dynalock Rail, you can enjoy the benefits of both Arca and Dynalock accessories on your firearm. The most popular enhancement is the ability to use the Orbit Ballhead with Dynalock, all other Arca Clamp accessories are also compatible.

Features
  • 6061 T6 Aluminum
  • Hardcoat Anodized
  • 2.1 oz
  • 3.00 Long"
Specifications
UPC: 850043428435
Manufacturer: Ultradyne USA
Manufacturer Part #: UD20080
Model: UD Arca Dynalock Rail
Size: 3"
Finish: Anodized
Type: Rail