MDT ORYX | THOMPSON/CENTER COMPASS SHORT ACTION | RIGHT HAND
Give Your Compass More to Work With.
The MDT ORYX Rifle Chassis for the Thompson/Center Compass short action, right hand brings the rifle you already own into a rigid aluminum platform with V-block bedding, a free-floating barrel channel and an adjustable stock. Instead of hunting for a long list of Compass-specific accessories, you can build around the proven ORYX system.
A good stock upgrade should do more than look different. The ORYX gives your Compass a solid, repeatable seating surface for the action and lets you set up a more comfortable position behind the scope. The real advantage comes afterward: M-LOK bipods, ARCA supports, balance weights and sling hardware are no longer limited by what happens to be made specifically for the Compass.
Built Around the Way You Shoot
From the bench, the broad forend sits comfortably on a front bag. In prone, a directly mounted M-LOK bipod gives you an easy starting point. For positional shooting, adding an ARCA rail lets you move a compatible bipod or tripod clamp along the forend to suit the support. And if the Compass spends most of its time in the field, you can leave the extra hardware off until you need it.
The adjustable cheekpiece helps you find a consistent sight picture, while the spacer-adjustable length of pull makes the stock easier to fit to the shooter. Replaceable ORYX side panels also let you change the appearance later, without purchasing another chassis.
Made for the T/C Compass Short Action
This ORYX model is made for the Thompson/Center Compass short-action, right-hand inlet. The rifle fit stays the same across the Black, FDE, OD Green and Grey finishes. Other actions, including different T/C models or action lengths, have their own fitment requirements. Browse the rifle chassis catalog for other inlets.
Pair It With
Want to run a sling and still have room to position a bipod or tripod? Our full-length ORYX ARCA rail adds front QD sling cups and an ARCA interface, while our rear replacement weight adds rear QD points and extra balance at the buttstock. The MDT tool-less cheek wheels make height changes easier without reaching for a wrench.
Pete's ORYX Full-Length ARCA RailARCA mounting and integrated front QD sling cups.
Pete's ORYX Rear QD WeightRear balance and QD sling cups on both sides.
ORYX Tool-Less Cheek WheelsAdjust cheek height without reaching for a tool.
More Ways to Build Out Your ORYX
The Compass aftermarket is relatively limited, but the ORYX opens up a much larger accessory selection. If you want the rifle to settle into a bag or barricade more steadily, our 12.3 oz M-LOK forend weight pair adds more front-end mass. Our 6 oz mini weight pair gives you a smaller adjustment. Combine front and rear weights to tune the balance for the way you actually shoot.
Full-Size M-LOK Forend Weights12.3 oz per pair to tune the rifle's front-end balance.
Mini M-LOK Forend Weights6 oz per pair for finer balance adjustments.
M-LOK Backing T-NutsSmall replacement hardware to keep in the parts box.Make the ORYX Your Own
Keep the chassis and change the look. Our M81 Woodland, Snow White and Arctic Camo replacement panels offer a different finish without changing rifle fit. For more mounting space, choose ORYX M-LOK side panels, available in Black, FDE, Grey and OD Green.
ORYX M81 Woodland PanelsWoodland camouflage for your existing chassis.
ORYX Snow White PanelsA clean, contrasting replacement-panel finish.
ORYX M-LOK Side PanelsAdd more mounting positions along the forend.Choose the Magazine for Your Cartridge
The Compass ORYX inlet brings AICS-pattern detachable-magazine compatibility to the rifle. Match the magazine to the cartridge you shoot: our MDT .308 / 6.5 Creedmoor metal 5-round magazine and MDT .223 polymer short-action magazine cover different chamberings, so choose the one that matches your rifle. Browse the magazine catalog for other options.
Finish Your Build
Support for the Bench, Field and Barricade
The M-LOK forend accepts a direct-mount ORYX bipod or GRND-POD. Add our full-length ARCA rail for an ARCA bipod or tripod clamp, or choose a Picatinny bipod with the proper adapter. From the lighter Mountain and Backcountry models to the competition-focused Ckye-Pod, the support can grow with the rifle.
Prefer an ORYX bipod in a matching finish? Choose a direct-mount M-LOK model in Black, FDE, Grey or OD Green.
M-LOK | Direct MountMDT ORYX M-LOK BipodA straightforward M-LOK choice for the range or field.View Product →
M-LOK | Step UpMDT GRND-POD M-LOKAn upgrade in leg control for prone and supported shooting.View Product →
ARCA | With RailMDT GRND-POD ARCAPairs with Pete's full-length ARCA rail for sliding support.View Product →
ARCA | LightweightMDT Mountain BipodCarbon-fiber and titanium construction for a hunting rifle.View Product →
Picatinny | Add RailMDT Backcountry BipodFive-ounce field bipod with Picatinny mounting.View Product →
ARCA / Picatinny | CompetitionMDT Ckye-Pod Gen3 CompactWide positioning options for demanding shooting stages.View Product →Key Specifications
Manufacturer: MDT / ORYX
Model: ORYX Sportsman Rifle Chassis
MPN Series: MDT 104359 (finish-specific suffix)
Rifle Inlet: Thompson/Center Compass short action, right-hand
Factory Finishes: Black, FDE, OD Green and Grey
Chassis: Rigid CNC-machined aluminum structure and V-block bedding interface
Barrel: Free-floating forend design
Stock Fit: Adjustable cheek riser and spacer-adjustable length of pull
Forend: M-LOK mounting locations
Magazine Interface: AICS-pattern detachable magazines matched to the rifle's cartridge
Customization: Replaceable ORYX side panels; compatible ARCA, bipod, and QD sling accessories available
Build Beyond the Factory Stock
Pete's Pillars is an authorized MDT dealer and manufactures the ORYX ARCA rail and rear replacement weight in the USA. Start with the chassis that fits your Compass, then add the parts that make sense for how you use it.
Frequently Asked Questions
Will the MDT ORYX 104359 series fit my Thompson/Center Compass?
This model is the Thompson/Center Compass short-action, right-hand inlet. The color-specific MPNs are 104359-BLK, 104359-FDE, 104359-ODG and 104359-GRY. Other T/C actions and different Compass generations should be checked individually rather than assumed to use the same inlet.
Does this fit a Compass long action or a T/C Venture?
Not as a substitute for this short-action Compass inlet. Match the chassis to the rifle model, action length and hand orientation before ordering.
What does the aluminum V-block chassis change?
Instead of relying on a conventional stock bedding surface, the ORYX supports the action in a rigid aluminum V-block structure. It gives the rifle a solid stock foundation while retaining a free-floating forend and adjustable fit.
Can I adjust the cheek height and length of pull?
Yes. The ORYX has an adjustable cheekpiece and spacer-adjustable length of pull. For faster cheek-height changes, we also stock ORYX tool-less cheek riser wheels.
What magazines work with this ORYX chassis?
The centerfire ORYX uses compatible AICS-pattern magazines. Choose one appropriate for your Compass chambering; a .308/6.5 Creedmoor AICS magazine is not the same as a .223 AICS magazine. Factory Compass magazines should not be assumed to fit the AICS interface.
Can I attach a bipod without buying an ARCA rail?
Yes. The forend has M-LOK mounting locations. Our MDT ORYX M-LOK bipod and MDT GRND-POD M-LOK are two direct-mount options.
Why add Pete's Pillars full-length ORYX ARCA rail?
It gives the forend a continuous ARCA mounting interface for compatible tripods and ARCA bipods, with integrated front QD sling cups. See our full-length ORYX ARCA rail.
How do I add a sling with front and rear QD points?
Our ORYX ARCA rail provides front QD cups and our rear replacement weight adds rear QD cups. Pair them with suitable push-button swivels such as the GrovTec QD swivel pair.
Can I customize the ORYX chassis after installing it?
Yes. Choose M81 Woodland, Snow White, or M-LOK side panels for more side mounting positions. You can also add our M-LOK forend weights or mini weights to adjust balance.
Is this a complete rifle, and does it include an optic or bipod?
No. This listing is for the MDT ORYX chassis system in the T/C Compass short-action, right-hand inlet and the selected finish. The rifle, optic, bipod and optional accessories shown alongside the chassis are separate products.
Pete's Pillars is an authorized MDT dealer.
Small Change. Big Impact. Pete's Pillars.
MDT ORYX | THOMPSON/CENTER COMPASS SHORT ACTION | RIGHT HAND
Give Your Compass More to Work With.
The MDT ORYX Rifle Chassis for the Thompson/Center Compass short action, right hand brings the rifle you already own into a rigid aluminum platform with V-block bedding, a free-floating barrel channel and an adjustable stock. Instead of hunting for a long list of Compass-specific accessories, you can build around the proven ORYX system.
A good stock upgrade should do more than look different. The ORYX gives your Compass a solid, repeatable seating surface for the action and lets you set up a more comfortable position behind the scope. The real advantage comes afterward: M-LOK bipods, ARCA supports, balance weights and sling hardware are no longer limited by what happens to be made specifically for the Compass.
Built Around the Way You Shoot
From the bench, the broad forend sits comfortably on a front bag. In prone, a directly mounted M-LOK bipod gives you an easy starting point. For positional shooting, adding an ARCA rail lets you move a compatible bipod or tripod clamp along the forend to suit the support. And if the Compass spends most of its time in the field, you can leave the extra hardware off until you need it.
The adjustable cheekpiece helps you find a consistent sight picture, while the spacer-adjustable length of pull makes the stock easier to fit to the shooter. Replaceable ORYX side panels also let you change the appearance later, without purchasing another chassis.
Made for the T/C Compass Short Action
This ORYX model is made for the Thompson/Center Compass short-action, right-hand inlet. The rifle fit stays the same across the Black, FDE, OD Green and Grey finishes. Other actions, including different T/C models or action lengths, have their own fitment requirements. Browse the rifle chassis catalog for other inlets.
Pair It With
Want to run a sling and still have room to position a bipod or tripod? Our full-length ORYX ARCA rail adds front QD sling cups and an ARCA interface, while our rear replacement weight adds rear QD points and extra balance at the buttstock. The MDT tool-less cheek wheels make height changes easier without reaching for a wrench.
Pete's ORYX Full-Length ARCA RailARCA mounting and integrated front QD sling cups.Pete's ORYX Rear QD WeightRear balance and QD sling cups on both sides.ORYX Tool-Less Cheek WheelsAdjust cheek height without reaching for a tool.More Ways to Build Out Your ORYX
The Compass aftermarket is relatively limited, but the ORYX opens up a much larger accessory selection. If you want the rifle to settle into a bag or barricade more steadily, our 12.3 oz M-LOK forend weight pair adds more front-end mass. Our 6 oz mini weight pair gives you a smaller adjustment. Combine front and rear weights to tune the balance for the way you actually shoot.
Full-Size M-LOK Forend Weights12.3 oz per pair to tune the rifle's front-end balance.Mini M-LOK Forend Weights6 oz per pair for finer balance adjustments.M-LOK Backing T-NutsSmall replacement hardware to keep in the parts box.Make the ORYX Your Own
Keep the chassis and change the look. Our M81 Woodland, Snow White and Arctic Camo replacement panels offer a different finish without changing rifle fit. For more mounting space, choose ORYX M-LOK side panels, available in Black, FDE, Grey and OD Green.
ORYX M81 Woodland PanelsWoodland camouflage for your existing chassis.ORYX Snow White PanelsA clean, contrasting replacement-panel finish.ORYX M-LOK Side PanelsAdd more mounting positions along the forend.Choose the Magazine for Your Cartridge
The Compass ORYX inlet brings AICS-pattern detachable-magazine compatibility to the rifle. Match the magazine to the cartridge you shoot: our MDT .308 / 6.5 Creedmoor metal 5-round magazine and MDT .223 polymer short-action magazine cover different chamberings, so choose the one that matches your rifle. Browse the magazine catalog for other options.
Finish Your Build
Support for the Bench, Field and Barricade
The M-LOK forend accepts a direct-mount ORYX bipod or GRND-POD. Add our full-length ARCA rail for an ARCA bipod or tripod clamp, or choose a Picatinny bipod with the proper adapter. From the lighter Mountain and Backcountry models to the competition-focused Ckye-Pod, the support can grow with the rifle.
Prefer an ORYX bipod in a matching finish? Choose a direct-mount M-LOK model in Black, FDE, Grey or OD Green.
M-LOK | Direct MountMDT ORYX M-LOK BipodA straightforward M-LOK choice for the range or field.View Product →M-LOK | Step UpMDT GRND-POD M-LOKAn upgrade in leg control for prone and supported shooting.View Product →ARCA | With RailMDT GRND-POD ARCAPairs with Pete's full-length ARCA rail for sliding support.View Product →ARCA | LightweightMDT Mountain BipodCarbon-fiber and titanium construction for a hunting rifle.View Product →Picatinny | Add RailMDT Backcountry BipodFive-ounce field bipod with Picatinny mounting.View Product →ARCA / Picatinny | CompetitionMDT Ckye-Pod Gen3 CompactWide positioning options for demanding shooting stages.View Product →Key Specifications
Manufacturer: MDT / ORYX
Model: ORYX Sportsman Rifle Chassis
MPN Series: MDT 104359 (finish-specific suffix)
Rifle Inlet: Thompson/Center Compass short action, right-hand
Factory Finishes: Black, FDE, OD Green and Grey
Chassis: Rigid CNC-machined aluminum structure and V-block bedding interface
Barrel: Free-floating forend design
Stock Fit: Adjustable cheek riser and spacer-adjustable length of pull
Forend: M-LOK mounting locations
Magazine Interface: AICS-pattern detachable magazines matched to the rifle's cartridge
Customization: Replaceable ORYX side panels; compatible ARCA, bipod, and QD sling accessories available
Build Beyond the Factory Stock
Pete's Pillars is an authorized MDT dealer and manufactures the ORYX ARCA rail and rear replacement weight in the USA. Start with the chassis that fits your Compass, then add the parts that make sense for how you use it.
Frequently Asked Questions
Will the MDT ORYX 104359 series fit my Thompson/Center Compass?
This model is the Thompson/Center Compass short-action, right-hand inlet. The color-specific MPNs are 104359-BLK, 104359-FDE, 104359-ODG and 104359-GRY. Other T/C actions and different Compass generations should be checked individually rather than assumed to use the same inlet.
Does this fit a Compass long action or a T/C Venture?
Not as a substitute for this short-action Compass inlet. Match the chassis to the rifle model, action length and hand orientation before ordering.
What does the aluminum V-block chassis change?
Instead of relying on a conventional stock bedding surface, the ORYX supports the action in a rigid aluminum V-block structure. It gives the rifle a solid stock foundation while retaining a free-floating forend and adjustable fit.
Can I adjust the cheek height and length of pull?
Yes. The ORYX has an adjustable cheekpiece and spacer-adjustable length of pull. For faster cheek-height changes, we also stock ORYX tool-less cheek riser wheels.
What magazines work with this ORYX chassis?
The centerfire ORYX uses compatible AICS-pattern magazines. Choose one appropriate for your Compass chambering; a .308/6.5 Creedmoor AICS magazine is not the same as a .223 AICS magazine. Factory Compass magazines should not be assumed to fit the AICS interface.
Can I attach a bipod without buying an ARCA rail?
Yes. The forend has M-LOK mounting locations. Our MDT ORYX M-LOK bipod and MDT GRND-POD M-LOK are two direct-mount options.
Why add Pete's Pillars full-length ORYX ARCA rail?
It gives the forend a continuous ARCA mounting interface for compatible tripods and ARCA bipods, with integrated front QD sling cups. See our full-length ORYX ARCA rail.
How do I add a sling with front and rear QD points?
Our ORYX ARCA rail provides front QD cups and our rear replacement weight adds rear QD cups. Pair them with suitable push-button swivels such as the GrovTec QD swivel pair.
Can I customize the ORYX chassis after installing it?
Yes. Choose M81 Woodland, Snow White, or M-LOK side panels for more side mounting positions. You can also add our M-LOK forend weights or mini weights to adjust balance.
Is this a complete rifle, and does it include an optic or bipod?
No. This listing is for the MDT ORYX chassis system in the T/C Compass short-action, right-hand inlet and the selected finish. The rifle, optic, bipod and optional accessories shown alongside the chassis are separate products.
Pete's Pillars is an authorized MDT dealer.
Small Change. Big Impact. Pete's Pillars.
| Brand | MDT |
| Gun Platform | Compass |
| Hand | Right Hand |
| Chassis Series | Oryx |
| Type | Chassis |