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Accuracy International AT-X AICS Rem 700 Short Action/Long Upper Fire Red Chassis System 29642FR

SKU 29642FR-AI

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The AT-X Chassis was specifically designed to meet the demands of professional competition shooters, and features the quality and precision that Accuracy International is known for. Based off the renowned AT-X Rifle, the AT-X Chassis is outfitted with a fixed stock that can be finely tuned to the user’s preferred length of pull, cheek height, and recoil-pad height/cant by loosening and tightening the corresponding knobs. The AT-X Chassis’ fore-end is equipped with KeySlot mounting points in the 3, 6, and 9 o’clock positions. These mounting points run the entire length of the fore-end, accommodating the use of KeySlot accessories such as weights, fore-end bridges, sling swivels, bipod mounts, and rails. The bottom of the fore-end features an integrated ARCA rail, allowing a compatible bipod or tripod to be installed and adjusted with ease. In addition, the magazine well has been overcut to speed up magazine changes, and an integrated barricade stop promotes greater stability when shooting from an unconventional position.

Features of the AT-X Chassis:

  • Based off the AT-X Rifle
  • Stock: tool-less length of pull, cheek height, and recoil pad height/cant
  • KeySlot mounting points in the 3, 6, and 9 o’clock positions
  • Integrated ARCA rail
  • Integrated barricade stop
  • Overcut magazine well for faster reloads


  • Item ConditionNew
  • ColorFire Red
  • Folding Stock:No
  • Fit DetailsCompatible with Remington 700 Short Actions
  • HandednessRight Hand
  • Product TypeStock/Chassis
  • MPNAI-29642FR

Customer Reviews

Average Rating
December 29, 2022

Received the nice red AT-X chassis today. Pulled my .223 Remington 700 5-R barreled action out of the original Hogue rubber stock, installed a picatinny rail for my Atlas bipod, and a rail on the left front for my QD sling swivel. The rifle slipped into place, ready to torque down and try a few dummy rounds through the magazine, and adjust the stock to fit me. Hardest part of the installation was cutting a long 3/16” Allen wrench off, so as to fit the long section into my torque wrench so I could reach the two action screws. The stock adjustments allowed me to have a rifle that fits me. For the first time, the scope is aligned to my eye. No more searching or hunching up on the stock, only to get a view so dark I couldn’t see the entire reticle. Fabulous service from Jason. The chassis is a quality item with a great ability to fit different body shapes. The red paint is well applied and shocking to see. The grip is comfortable and makes controlling the rifle very easy. I’ll probably have to buy another chassis in a different color, as an excuse to build a .224 Valkyrie. AICS hit another home run. This kit is better than I expected.

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