MDT CHASSIS – ORYX – HOWA MINI – RH – ODG

MDT ORYX Chassis for Howa Mini Action RH OD Green – 106160-ODG

Upgrade your right-handed Howa Mini Action rifle with the MDT ORYX Sportsman Chassis.

This chassis combines a rigid 6061 aluminium core with durable polymer exterior panels. Its V-block bedding system supports the action securely, while the free-floating forend prevents unwanted contact with the barrel.

The adjustable cheek riser and length-of-pull system help create a comfortable and repeatable shooting position. Unlike most centre-fire ORYX chassis, the Howa Mini version retains the original Howa Mini factory magazine system.

Key Features

• Designed specifically for the Howa Mini Action
• Right-handed configuration
• Uses original Howa Mini factory magazines
• Rigid 6061 aluminium chassis core
• High-strength polymer exterior panels
• V-block bedding system
• Free-floating barrel channel
• Maximum barrel diameter of approximately 1.25 inches
• Adjustable cheek riser
• Adjustable length of pull
• MDT Elite pistol grip included
• Compatible with selected AR-15-style grips
• M-LOK slots beneath the forend
• Integrated barricade stop
• OD Green finish

Product Specifications

Rifle Compatibility

This chassis is designed for right-handed Howa Mini Action rifles, including supported versions of the:

• Howa Mini Action Rifle
• Howa Mini Action Full Dip
• Howa Mini EXCL Lite

Compatibility is determined by the receiver and action size. Confirm that the rifle uses a genuine Howa Mini Action before ordering.

The Howa Mini Action is physically different from the Howa 1500 short action. A chassis made for the Howa 1500 short action will not replace this model.

Calibre Compatibility

Current Howa Mini Action chamberings can include:

• 6mm ARC
• .223 Remington
• 6.5 Grendel
• 7.62×39
• .350 Legend

Older or regional Howa Mini Action rifles may also be available in other chamberings. Fitment depends on the receiver being a standard right-handed Howa Mini Action.

The original factory magazine must match the rifle’s calibre. Magazine feed-lip shape and internal geometry differ between cartridge families.

Important Magazine Requirement

This chassis uses original Howa Mini factory magazines.

• AICS magazines do not fit.
• AR-15 magazines do not fit.
• The magazine is sold separately.
• Retain the correct factory magazine for the rifle.
• Select the factory magazine according to the calibre.
• Magazine capacity depends on calibre, magazine model and local regulations.

Do not order a polymer short-action AICS magazine for this chassis. Polymer AICS magazines are used by the Howa 1500 short-action ORYX chassis, not the Howa Mini version.

Not Compatible With

This chassis is not intended for:

• Howa 1500 short-action rifles
• Howa 1500 long-action rifles
• Weatherby Vanguard rifles
• Left-handed actions
• Standard AICS magazines
• Long-action AICS magazines
• AR-15 magazines
• Remington, Savage, Tikka or Ruger actions
• Youth-specific configurations requiring a different ORYX product code

Do not order based only on calibre. For example, .223 Remington rifles may use a Mini Action or a different receiver configuration, depending on the model and production series.

Construction and Bedding

The ORYX chassis uses a solid aluminium core to create a rigid mounting platform for the receiver.

Its V-block bedding system positions the action consistently without requiring traditional glass bedding in most installations. The forend provides clearance around the barrel to maintain a free-floating barrel arrangement.

The polymer exterior panels provide a comfortable gripping surface and help protect the aluminium structure.

Adjustable Buttstock

The integrated ORYX buttstock includes:

• Adjustable cheek riser
• Length-of-pull spacer system
• Textured recoil pad
• Straight-line design for supported shooting
• Stable rear surface for use with a shooting bag

The cheek riser can be adjusted to improve eye alignment with a mounted riflescope. Length-of-pull spacers allow the stock to be adapted to the shooter’s size, clothing and shooting position.

Grip Compatibility

An MDT Elite pistol grip is included.

The chassis accepts compatible AR-15 standard and vertical-style pistol grips. Grips with large beavertails or unusual profiles may require fitment confirmation.

Accessory Mounting

M-LOK slots beneath the forend allow compatible accessories to be installed, including:

• Bipod rails and adapters
• Sling mounting points
• Barricade stops
• Tripod adapters
• Utility rails
• Selected ARCA rail systems

The integrated barricade stop provides a firm contact point when shooting from supported positions.

Accessories are sold separately.

Installation

The Howa Mini barreled action is removed from its original stock and installed in the ORYX chassis.

Before installation:

1. Unload the rifle completely.
2. Remove the factory magazine.
3. Open the bolt.
4. Confirm visually and physically that the chamber is empty.
5. Follow the MDT installation and torque instructions.

The chassis includes model-specific action screws. Do not reuse screws that are damaged, incorrectly sized or too long.

After installation, confirm that:

• The action is seated correctly
• The action sc