Description
MDT built the Composite Carbine Stock, or CCS, to do one thing well: let you tune your fit without adding bulk. The body is a durable composite polymer riding on an anodized aluminum buffer tube, with anodized aluminum cheek riser posts holding everything solid. At 1.41 pounds, it stays light enough that you won't notice the weight on a long day behind the gun, and the FDE finish blends right in with earth-tone builds.
Dialing In Your Fit With the CCS
This is where the Composite Carbine Stock earns its keep. Length of pull adjusts a full inch using four quarter-inch spacers that drop in between the butt pad and the rear of the stock, so you can set it up short for gear and heavy layers or stretch it out for a natural reach. The cheek riser gives you up to 1.5 inches of height, which makes a real difference when you're chasing a consistent cheek weld and clean scope alignment shot after shot. Overall length runs from roughly 10.6 to 11.6 inches depending on how you spec the spacers.
Mounting and Compatibility Notes for the MDT CCS
The CCS uses a standard carbine collapsible buttstock interface, meaning it slides onto a mil-spec AR-style carbine buffer tube. It drops right onto MDT chassis systems set up for a carbine tube, and several of MDT's chassis lines will run it directly or with the correct adapter, so it's worth confirming your specific setup before ordering. There's also an M-LOK slot on the bottom surface if you want to add a monopod, bag rider, or other accessory back there.
Between the adjustable comb, the tunable length of pull, and the composite build, the CCS hits a sweet spot for precision rifle and bolt-gun chassis shooters who want a proven, no-drama stock that fits like it should.
Key Specifications
- Manufacturer: MDT
- Model: CCS – Composite Carbine Stock
- Manufacturer Part Number: 104717-FDE
- UPC: 682157394159
- Color: Flat Dark Earth (FDE)
- Body Material: Composite Polymer
- Buffer Tube / Cheek Riser Posts: Anodized Aluminum
- Interface: Carbine / Collapsible Buttstock
- Weight: 1.41 lbs
- Overall Length: 10.6 in – 11.6 in
- Length of Pull Adjustment: 1 in via 4 x 1/4 in spacers
- Cheek Riser Height Adjustment: Up to 1.5 in
- Accessory Mount: M-LOK slot on bottom surface
What’s Included
- MDT Composite Carbine Stock (CCS) in FDE
- 4 x 1/4 inch length-of-pull spacers
Frequently Asked Questions
Will the MDT Composite Carbine Buttstock fit my AR-15?
The CCS uses a standard carbine collapsible buttstock interface modeled after the AR-15/M16 buffer tube, so it will physically mount to a mil-spec carbine receiver extension. It was designed primarily for MDT chassis systems, and on some modern sporting rifle setups you may need an adapter or minor clearance work depending on the charging handle. Check your specific rifle's buffer tube before ordering to be sure.
How much adjustment does the CCS actually give you?
You get a full inch of length-of-pull adjustment using the four included quarter-inch spacers that install between the butt pad and the stock body. The cheek riser adds up to 1.5 inches of comb height, which helps you lock in a repeatable cheek weld and clean optic alignment. That combination lets you tune fit across different positions and shooting layers.
What is the MDT CCS made of and how much does it weigh?
The body is a durable composite polymer built on an anodized aluminum buffer tube, with anodized aluminum cheek riser posts for a solid, no-flex feel. The whole stock weighs 1.41 pounds, making it one of the lighter fully adjustable options in MDT's carbine stock lineup. It's a good pick when you want adjustability without piling on ounces.
Can I add accessories to the Composite Carbine Stock?
Yes. There's an M-LOK attachment slot on the bottom surface of the stock, so you can mount a rear monopod, bag rider, or similar accessory. That gives you a stable rear support option for precision and bench work.





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