Description
The MDT LSS Gen3 CRB Interface is the Carbine buttstock adapter built specifically for Ruger 10/22 owners running the LSS Gen3 chassis. It takes the back end of your chassis and turns it into a mounting point for standard AR-15 carbine buffer tube stocks, which means you get access to a huge range of collapsible and adjustable stocks, including MDT's own Skeleton Carbine Stock. The whole point of the Gen3 platform is modularity, and this piece is the part that lets you tune the rear of the rifle to how you actually shoot.
Where the LSS Gen3 CRB Interface Fits In
The LSS Gen3 system is designed so you can build and rebuild without ever pulling your barreled action. Start with the Ruger 10/22 chassis base, then pick your buttstock interface, forend, grip, and stock. This Carbine interface is one of three back-end options MDT offers, alongside the XTN and Picatinny versions, and it's the one to grab if you want to run a buffer tube stock. Keep in mind these Ruger-specific interfaces are made to fit the Ruger chassis and won't interchange with the standard LSS Gen3 buttstock interfaces, so matching it to your 10/22 base is the way to go.
Build Quality You Can Feel on the LSS Gen3 Carbine Interface
It's CNC machined from 6061 aluminum and finished in Cerakote, so it holds up to real use without adding much weight to the rifle. The Carbine interface tips the scale right around 0.39 pounds, keeping your 10/22 build light and quick-handling. Installation is straightforward and doesn't call for a gunsmith. You swap interfaces in minutes with basic tools, and the rigid geometry keeps everything locked in tight for consistent shooting.
Whether you're putting together a compact plinker, a rimfire trainer that mirrors your centerfire setup, or a competition-ready 22, this interface gives you the flexibility to change direction whenever you want. It's a smart pickup for anyone who likes the idea of one chassis that adapts as their needs change.
Key Specifications
- Manufacturer: MDT
- Manufacturer Part Number: 114624BLK
- UPC: 990482726737
- Interface Type: Carbine (accepts AR-15 buffer tube stocks)
- Platform: Ruger 10/22
- Chassis Compatibility: MDT LSS Gen3 (Ruger-specific base)
- Material: 6061 Aluminum
- Finish: Cerakote Black
- Weight: Approx. 0.39 lbs
- Installation: No gunsmithing required
What’s Included
- MDT LSS Gen3 CRB (Carbine) Buttstock Interface
- All necessary installation hardware
Frequently Asked Questions
What does the LSS Gen3 CRB Interface let me run on my Ruger 10/22?
The Carbine interface accepts standard AR-15 buffer tube style buttstocks, which opens up a wide range of collapsible and adjustable options. That includes MDT's Skeleton Carbine Stock along with most aftermarket carbine stocks. It's the go-to choice if you want that familiar AR feel on your 10/22 chassis build.
Will this Carbine interface work with any LSS Gen3 chassis?
This is a Ruger-specific interface built to fit the Ruger 10/22 LSS Gen3 chassis base. MDT designed the Ruger interfaces separately from the standard LSS Gen3 buttstock interfaces, so they aren't cross-compatible. Match it to your Ruger 10/22 base and you're set.
Do I need a gunsmith to install the LSS Gen3 CRB Interface?
No gunsmithing needed. The Gen3 system is built to be modular, so you can swap buttstock interfaces in minutes with basic tools. All the mounting hardware you need comes in the box.
What is the interface made of and how durable is it?
It's CNC machined from 6061 aluminum and finished in Cerakote for solid wear and corrosion resistance. That combination keeps it strong without adding much weight to your rifle. The rigid design also helps keep everything consistent shot to shot.





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