MDT XRS Chassis System — Black | Fits Ruger American, Short Action | Overall Length 32.25" | Model 105345-BLK (105345BLK) | UPC 682157402960
Turn your Ruger American short action into a precision performer. The MDT XRS Chassis System (Black) blends the ergonomics of a traditional rifle stock with the rigidity and modularity of a chassis, giving hunters and precision shooters a familiar feel, improved recoil control, and repeatable accuracy. Purpose-built for the Ruger American Short Action footprint, this XRS features a full-length aluminum bedding block wrapped in a durable polymer shell, adjustable geometry, and robust M-LOK™ mounting for bipods, Arca adapters, and accessories—delivering a rock-solid foundation from the truck to the match line.
Platform: Ruger American — Short Action
Overall Length: 32.25"
Color: Black
Model/SKU: 105345-BLK / 105345BLK
UPC: 682157402960
Why Upgrade to the MDT XRS for Ruger American
Stock Feel, Chassis Precision
The hybrid design offers a classic vertical grip and forend contour for natural shouldering, with an aluminum V-block core that delivers repeatable torque and consistent point-of-impact.
Fit for Ruger American (Short Action)
Inletted specifically for Ruger American SA receivers to minimize gunsmithing, improve bedding, and keep your project clean and fast.
Adjustable Ergonomics
Tunable length of pull (via spacers) and cheek riser height allow a custom fit for your optic height and shooting position—critical for prone and tripod work.
M-LOK™ Forend + Accessories
Multiple M-LOK slots along the forend let you mount bipods, sling studs, barrier stops, and Arca/Swiss adapters for quick tripod integration.
Rigid, Weather-Resistant Construction
The inner 6061-aluminum core ensures stiffness and bedding integrity; the outer polymer shell adds impact resistance and warmth-to-touch in cold weather.
AICS Magazine Compatibility
Most XRS models accept AICS-pattern magazines (short action)—a huge advantage for feeding reliability and aftermarket support. (Verify exact variant specs and mag catch height for your cartridge.)
Ideal Use Cases
Hunting to Precision Crossovers: Keep a traditional profile for carry and field handling while gaining a stiffer bedding platform for long-range shots.
PRS/NRL Hunter & Club Matches: Run a bag-friendly forend, vertical grip, and adjustable LOP/comb for stable, repeatable positions.
Rim-to-Range Versatility: Dial ergonomics for prone, kneeling, barricades, and tripod without fighting factory stock flex.
Feature Highlights
Hybrid chassis/stock with full-length aluminum bedding block
Black polymer outer shell for durability and comfort
Adjustable cheek riser & spacer-based LOP system
M-LOK™ forend with ample real estate for bipods/rails
Vertical grip angle for modern precision shooting mechanics
QD sling points / sling stud provisions (model dependent)
AICS-pattern mag compatibility (short action)*
Overall length: 32.25" (compact, bag-friendly)
*Always confirm magazine and cartridge compatibility for your specific Ruger American SA variant.
Compatibility & Fit Notes
Action: Ruger American Short Action only (not long action).
Calibers: Typical SA chamberings (.308 Win, 6.5 Creedmoor, 6mm Creedmoor, etc.). Check your magazine COAL and feed ramp alignment when changing bullet shapes/lengths.
Barrels: Works with sporter to medium/varmint contours; verify clearance for large straight-taper bull barrels.
Bottom Metal: XRS incorporates its own DBM system (model dependent). Confirm AICS SA magazine fit and latch height.
Torque: Follow MDT’s recommended action screw torque for best accuracy and return-to-zero.
Setup & Tuning Tips
Verify Clearance: Ensure barrel floats freely from the receiver face forward; re-check after torque.
Torque Right: Start with manufacturer-recommended inch-pounds on front/rear action screws; test groups and fine-tune.
Set Your LOP & Comb: Match cheek height to your scope’s optical centerline; use LOP spacers to maintain a neutral head position.
Balance the Rifle: Add external weights/Arca plates (if desired) to tune balance for barricade and tripod stages.
Magazine Check: Function test feeds with your chosen AICS SA mags using dummy rounds before live fire.
What You’ll Love in the Field
Confidence Under Recoil: The rigid bedding and vertical grip help you track the reticle and spot impacts.
Fast Transitions: A flat, stable forend and M-LOK slots let you build positions quickly with bipods, bags, and Arca clamps.
All-Weather Performance: The polymer shell insulates your hands; the metal core won’t swell or warp with humidity.
Frequently Asked Questions
Q: Will this fit my Ruger American Predator (Short Action)?
A: Yes, if it’s a short action model. Confirm the action screw spacing and bottom-metal configuration.
Q: Which magazines should I use?
A: The XRS is typically AICS SA compatible. Use quality polymer or steel AICS-pattern magazines and verify latch height and COAL for your bullet profile.
Q: Do I need a gunsmith to install it?
A: Most users can install at home with basic tools and a torque wrench. A gunsmith can ensure optimal torque and trigger clearance if you prefer.
Q: Will my heavy barrel fit?
A: Many heavier contours fit; always check for free-float clearance—light sanding of the shell (if required) is easy and common in chassis systems.
Technical Specs (Summary)
Product: MDT XRS Chassis System
Color: Black
Inlet: Ruger American — Short Action
Overall Length: 32.25"
Core: 6061 aluminum V-block/bedding block
Shell: Impact-resistant polymer
Forend: M-LOK™ compatible
Grip: Vertical/ergonomic
Magazine Interface: AICS pattern (SA) (verify)
SKU/Model: 105345-BLK / 105345BLK
UPC: 682157402960
SEO Keywords (Naturally Woven)
MDT XRS Chassis Ruger American Short Action, black hybrid rifle stock chassis, 32.25" overall length, AICS magazine compatible, M-LOK forend, adjustable cheek riser and length of pull, precision hunting chassis for 6.5 Creedmoor/.308 Win, 105345-BLK, 105345BLK, UPC 682157402960.
Meta for Your Product Page
Meta Title: MDT XRS Chassis — Black, Ruger American Short Action, 32.25" | 105345-BLK
Meta Description: Upgrade your Ruger American SA with the MDT XRS. Aluminum bedding core, polymer shell, M-LOK forend, adjustable comb/LOP, AICS SA mag compatibility. Model 105345-BLK (105345BLK) — UPC 682157402960.
From backcountry ridges to local PRS barricades, the MDT XRS Chassis System (Black) gives your Ruger American Short Action the fit, feel, and precision foundation to shoot tighter groups—and shoot them more comfortably.
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