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MDT ACC Interior Forend Weights (5 Pack)

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These weights mount on the inside channel of the MDT ACC chassis forend. With the maximum forend capacity of 5 weights, they add 2.6lb to your ACC chassis system. The interior forend weights can be added and removed without removing your barreled action, simply remove the forend cap, slide them into the desired location under the barrel, and screw them in place from the bottom.


  • Underside clearance slot to allow mounting of M-Lok accessories to ACC chassis forend even with weights installed
  • Side clearance slots to allow mounting of M-Lok accessories to ACC chassis forend even with weights installed
  • 3 sets of mounting holes to allow the weight to be shifted inside the barrel channel at 20mm (¾”) increments for tuning the rifle’s balance point


This product has been designed specifically to fit interior barrel channel of the ACC chassis system, and is not compatible with any of our other chassis systems.


  • Four #10-24 x ½” Flat Head Cap Screws per weight for fastening to the chassis


  • Weight: 0.52 lbs / weight (including screws), 2.56 lbs total.
  • Material: Case-hardened Steel

MDT ACC Interior forend weights



Made in the USA

Customer Reviews

  • Interior weights

    Posted by LEE BRASWELL on Jul 1st 2021

    Easy to install with out having to remove the action.

  • MDT Interior Weight Set

    Posted by Shootin Okie on Jan 31st 2021

    Although these weights aren’t cheap, they fit perfectly and are finished very nicely. A lot of machining went into each weight. My Marksman profile barrel isn’t heavy enough to balance the ACC chassis and these weights did the trick.

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