MDT HS3 Chassis Right Hand Aluminum Black

  • Product Family #: 1018888459
MDT HS3 Chassis Right Hand Aluminum Black
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$499.99 - $549.99
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Mixed Availability
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Product Overview

The HS3 Chassis series is a combination of benchrest accuracy, superior ergonomics and specialized design. The new HS3 chassis brings your bolt action rifle to the next level in versatility and ergonomics, with an instant improvement in accuracy. The chassis itself is only 2.47lb / 1.4kg and was designed based on customer feedback who wanted longer fore ends (3" longer than the LSS), and use fixed rifle stocks (as compared to the LSS chassis which was designed for compact use with collapsible stocks). The drop-in chassis serves as a base to which the operator can add tactical components according to the desired functionality. The stock is manufactured out of aluminum, hard anodized to mil spec type III, and has durable polymer side panels which can be ordered in black.

Designed to accept fixed AR-15 buttstocks. Carbine stocks will also work.

This chassis was designed to accept fixed AR-15 butt-stocks and non-beavertail pistol grips. The kit does not include shoulder butt-stock and pistol grip or magazines, offering the option to customize from the wide variety available on the market.

The HS3 chassis uses AICS style magazine in .223 and .308 caliber for short action systems, and 300WM, 30.06 or .338LM for long action systems. Note that the magazine well for long action has the 3.715 length, and therefore you need AICS magazine in 3.715.

The chassis supports installation of bolt on MIL-STN-1913 accessory mounting rails on the bottom and sides of the forend. For the sides you will need the specific HS3 Chassis rails. The mounting holes are spaced for Magpul style L5 (11 slots) and L3 (7 slots) rails (1.600” / 3.200”).

The rifle action only makes contact with the HS3 chassis on the V shape bedding and recoil lug area insuring the best accuracy and repeatability. The generous clearance on the forend makes any barrel up to the size of the action itself free floated.



Long action magazines come in 4 different lengths: 3.560,  3.715", 3.775" an 3.850". The chassis use 3.715 magazines for all models, except Tikka T3 which uses the 3.560 magazines.


Savage models 10/110 11/111 12/112 16/116
For rifles with the bolt release at the bottom, the bolt release can be engaged through the side of the chassis, using a pin or tool. (Not included)
Note: Savage has many different models and configurations. In a very few cases, small modifications may be neccesary to the chassis to ensure trigger group and recoil lug clearance.


Savage Long Action in 338 Lapua Magnum

Savage Long Action chassis systems all use 3.715" AICS magazine wells. The BA 110 in Lapua Magnum uses 3.850" magazines and have recently switched to a thicker recoil lug which will not fit our chassis. 



  • Weighs 2.47/lbs
  • Designed for AR-15 fixed butt-stocks
  • Accepts any AR-15 grip, without a beavertail
  • Fits AICS/AM magazines in .223 and .308 (SA), .300WM and .338LM (LA)
  • Polymer side construction

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  • Cannot ship via air
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  • Must ship to Contiguous US
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NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.