Remington Model 700 Long Action Ultra Magnum Receiver, Bolt, and X-Mark Pro Trigger - Carbon Steel, R85319
This factory Remington Model 700 Long Action Ultra Magnum assembly is a modern, U.S.-made carbon steel receiver with fitted bolt and X-Mark Pro externally adjustable trigger. It is unbarreled and as-new, with key magnum dimensions that matter to builders, including a bolt face that measures around .545 inch and an internal box length that measures around 3.795 inches. It is drilled and tapped for scope bases and includes the original factory box and RemArms, LLC paperwork.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what's typical from inspection (see photos).
Bore Condition: Not applicable; no barrel is included with this action.
Specific Condition Notes: This sale includes the receiver, bolt, and trigger assembly only. The action has not been barreled or used.
What's Included
- Remington Model 700 Actions and Barreled Actions instruction manual (RemArms, LLC)
- Remington Model 700 Action factory box with label (SKU R85319; Long Action Ultra Magnum)
Built on the Model 700 Long Action Ultra Magnum footprint, this carbon steel receiver is marked "Remington MODEL 700" and "Remington Ilion, NY 700." It features a left-side bolt stop/bolt release, gas-vent ports at the receiver ring, and a swept bolt handle with a round, checkered knob.
The bolt face measures around .545 inch, a .540-class diameter appropriate for the Remington Ultra Magnum family. The receiver is drilled and tapped for scope bases with a two-hole front bridge and two-hole rear bridge.
Dimensional details include a user-reported internal feed box length that measures around 3.795 inches and the standard Model 700 barrel tenon thread of 1-1/16"-16 TPI. These factory dimensions provide clear guidance for component selection and fitment.
This assembly includes RemArms, LLC paperwork indicating modern production and the factory label noting SKU R85319 and "Long Action Ultra Magnum." Country of origin is the United States.