ACC CHASSIS SYSTEM Precision Rifle Chassis.


The ACC (Adjustable Core Competition) Chassis lets you fine-tune your rifle for the ultimate competitive edge. Its integrated weight system offers unparalleled balance customization, maximizing accuracy and reducing felt recoil. Includes the Skeleton Rifle Stock for enhanced stability and adjustable weight options. Get ready to dominate the range!

SKU: N/A Categories: , Tags: , ,


The Adjustable Core Competition (ACC) chassis revolutionizes precision shooting. Designed for PRS, NRL, and other competition disciplines, it delivers unprecedented balance and recoil control thanks to its integrated weight management system. Add weights strategically to the buttstock, interior forend, or external M-LOK slots – up to a total of 9 additional pounds! This transforms your rifle’s feel and performance on the fly.
The ACC boasts a full 17” ARCA/RRS compatible forend for maximum accessory customization. Enjoy competition-focused features like a flared magazine well, extended barricade stop, widened thumb shelf, and adjustable cheek riser/length of pull. Pair it with MDT’s XTN buttstock interface and SRS-X Elite Buttstock for the ultimate personalized shooting experience


  • CNC Machined from 6061 Aluminum
  • Chassis, buttstock and grip weight: 4.5lb – 13.5lb, depending on the rifle model and number of weights added to the system
  • Cerakote finish
  • 17″ of available ARCA/RRS dovetail, with retention screw so that accessories don’t fall off mid-stage
  • M-LOK pattern attachment system on all 3 faces of the forend
  • Accepts most AR-15 pistol grips
  • Wider, ergonimic thumb shelves than previous chassis systems
  • Mag latch limiter to prevent over camming and pinching of magazines
  • Uses our proprietary ESS buttstock interface
  • Free floating barrel channel with removable end cap for interior weight installation and adjustment
  • Trigger adjustment slot of R700 single stage triggers
  • Will accomodate barrels up to 1.350″ diameter
  • Compatible with AICS style magazines


  • Remington 700 Short Action and most aftermarket clones
  • Remington 700 Long Action CIP – Requires 3.850” magazines
  • Savage Short Action, Models 10,11,12 and 16
  • Tikka T3 Short Action calibers – Also supports Tikka T1x
  • Howa 1500 / Weatherby Vanguard Short Action
  • CZ 455 – will not work with the CZ455 Tuning trigger
  • Defiance XM
  • Bergara B-14
  • Full size bolt, Remington 700 Clones may be supported, contact Customer Support for more information about your action


The ACC chassis system comes as an assembled chassis, buttstock, and all required mounting hardware included. This includes new action screws, thumb screws for tooless buttstock adjustment as well as set screws for optional, more permanent buttstock setups.

To complete this chassis on your rifle, the additional items you need to purchase are:

  • At least one magazine
  • Additionally, interior forend weights, exterior M-LOK weights and buttstock weights are sold separately


Dimensions shown are based on the Remington 700 Short Action

ACC with Standard SRS-X Elite Buttstock (included)

Additional information

Weight 3.5 kg
Dimensions 80 × 19 × 16 cm

Howa SA, Howa LA, Rem700 SA, Rem700 LA, Tikka T3 SA, Tikka T3 LA, Savage SA, Savage LA, CZ455, CZ457


Black, FDE


There are no reviews yet

Add a review
You must be logged in to post a review Log In