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The MDT LSS Gen3 chassis base is the starting point for building out a left-handed Ruger American short action the way you want it. This is a drop-in swap that takes your factory rifle and turns it into a fully modular precision platform. No gunsmithing needed. You pull the barreled action from the factory stock, set it into the chassis, torque it down, and you have a stiffer, more repeatable foundation that plays nice with a huge range of accessories. It is machined for the left-hand Ruger American SA inlet specifically, so the fit is dialed in for that action.
The big story with the Gen3 is that it is built around a center body base that lets you hot-swap the forend, buttstock interface, buttstock, and grip without ever pulling your action. That means you can change your setup and keep your zero, which is a real time saver if you run one rifle for different jobs. Set it up light for a backcountry hunt, then bolt on a heavier forend and weights when you want to hang steel at distance. It accepts AR-style pistol grips and offers buttstock interface options for XTN, carbine buffer tube, and Picatinny folding stock setups.
This chassis converts your rifle to run standard AICS pattern magazines, so if your Ruger American uses a rotary or blind magazine, the LSS Gen3 upgrades you to detachable box mags. It ships with MDT's ambidextrous mag latch, which drops mags free with a push from your trigger finger, and it is also compatible with the MDT Adjustable Mag Latch if you want to fine-tune it.
The base is machined from 6061 aluminum with a Cerakote finish, so it holds up to rough handling and weather without babying. Inside, the aluminum V-block bedding gives the action a solid, repeatable contact point, and the front of the magwell has an integrated barricade stop for shooting off props. It is set up for MDT forends and interface parts, giving you a clear upgrade path as your needs change.
The LSS Gen3 base is the core of the system, not a complete stock. To have a fully functional rifle you will need to add a buttstock interface, a buttstock, an AR-style grip, and a forend to suit your setup. The base itself handles the action fit, mag well, and bedding, so it is the foundation you build the rest of your configuration onto.
It runs standard AICS pattern magazines. If your Ruger American came with a rotary or blind magazine, this chassis converts it over to detachable AICS box mags. The ambidextrous mag latch that ships with the chassis drops those mags free with a push from your trigger finger.
This inlet is machined specifically for the Ruger American short action in left-hand configuration, so it is matched to that action footprint. Ruger-specific interface assemblies are required for proper fitment and are not interchangeable with standard LSS Gen3 buttstock interfaces. If you are unsure whether your exact rifle qualifies as a short action, check your barreled action before ordering.
Yes, that is one of the main draws of the Gen3 system. The forend, buttstock interface, buttstock, and grip can all be changed without pulling your barreled action, so your optic zero stays put. That makes it easy to reconfigure the same rifle for hunting one weekend and precision work the next.
| UPC | 990482710620 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 114607BLK |
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