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Questions & Answers
How short of barrel could you use with this chassis? I will be running a 10.5" barrel with a suppressor and wanted to know if this would fit. Manufacturer Answer

For this specific chassis the shortest we would recommend would be 13" which would leave you roughly an inch from the very tip of the barrel to the front of the forend. Another option would be if your suppressor has a diameter of 1.35" or less it would actually be able to sit down in the barrel cut out of the chassis.

by Ultradyne USA, Manufacturer, March 12, 2026
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Product Info for Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis

The UD Picatinny Chassis refines the proven platform of the UD Chassis into a more practical, more adaptable option for the modern rifleimage

owner. We replaced the traditional buffer-tube interface with a robust, rear Picatinny mounting point so your butt stock detaches

quickly for compact transport or tight storage without compromising repeatable return-to-zero.

Ergonomics were a primary focus in our design. The chassis accepts an adjustable grip so shooters can customize trigger-finger distance to their preference, and the adjustable thumb rest lets you tune positioning for repeatability and comfort. Functionally, the Picatinny Chassis keeps compatibility with mil-spec AR grips, accepts detachable AICS magazines, and retains the integrated ARCA rail along the forend with M-LOK slots for accessories. A forward spigot location gives optional ARCA length extension, and a NV bridge mount provides a clip-on thermal/optic interface. The result: a chassis thats transportable, configurable, and purpose-built for precision.

Specifications for Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis:

Manufacturer: Ultradyne
Finish: Cerakote
Chassis Material: 6061-T6 Aluminum
Gun Make: Remington
Gun Model: Remington Model 700
Action Length: Short Action
Hand: Right
Gun Rail: M-LOK
Length: 21 in

Features of Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis

  • Butt Stock Interface: 1913 Picatinny
  • Grip Interface: Mil Spec A2 and UD Adjustable
  • Magazine Interface: AICS 4. Max Barrel Diameter: 1.35"
  • Forend: Integrated ARCA Rail and MLOK
  • Adjustable Thumb Rest Slots

Package Contents:

  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis
  • Installation Hardware Included

Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis Orderable Models

List of Orderable Models

  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis, Short Action, Right Hand, Armor Black, UD20161-AB , MPN: UD20161-AB , UPC: 810140663894 , Code: 3HE-RS0-HBJ2-UD20161-AB
  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis, Short Action, Right Hand, OD Green, UD20161-OG , MPN: UD20161-OG , UPC: 810140663924 , Code: 3HE-RS0-HBJ2-UD20161-OG
  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis, Short Action, Right Hand, Sniper Grey, UD20161-SG , MPN: UD20161-SG , UPC: 810140663917 , Code: 3HE-RS0-HBJ2-UD20161-SG
  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis, Short Action, Right Hand, Midnight Bronze, UD20161-MB , MPN: UD20161-MB , UPC: 810140663900 , Code: 3HE-RS0-HBJ2-UD20161-MB
  • Ultradyne UD6 Picatinny Remington Model 700 Rifle Chassis, Short Action, Right Hand, Coyote Tan, UD20161-CT , MPN: UD20161-CT , UPC: 810140663931 , Code: 3HE-RS0-HBJ2-UD20161-CT
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