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Luth-Ar
The Luth-AR AR adjustable buttstock assembly delivers customizable ergonomics and a complete buffer tube solution for AR-10 builds in .308 diameter specs. This mil-spec buffer assembly ships as a full kit—stock, buffer tube, spring, buffer, end plate, and castle nut included—so you have everything needed to install a properly functioning rear assembly on your .308 AR-10 lower receiver. If you're building or upgrading a modern sporting rifle chambered in .308 and want fine-tuned fit and flexibility right out of the box, this is a genuine drop-in option that handles the job without guesswork.
The MBA-3 stock itself is engineered around real shooter adjustability. The 3-axis butt plate lets you dial in angle, the cheek rest stacks to your preferred sight picture, and length of pull adjusts to match your frame and gear. Glass-filled nylon construction keeps weight down while delivering durability, and the anti-rattle screw locks everything tight to the mil-spec buffer tube with zero wobble. You also get multiple sling mounting points for your preferred carry system and a bottom Picatinny rail for a rear monopod if you're setting up for precision work or long-range drills.
Installation is straightforward—the stock slides onto the buffer tube and the included hardware does the rest. Mil-spec diameter compatibility means it's built for the standard .308 carbine buffer tube dimensions, so fitment is predictable. Whether you're running a hunting rifle, a target gun, or a duty-type build, this assembly covers the rear end of the platform with the kind of user-driven adjustment that beats a fixed stock on any platform.
| Product | Luth-AR MBA-3 Adjustable Buttstock Assembly |
| Platform Compatibility | AR-10 (.308) |
| Buffer Tube Diameter | Mil-Spec (.308 carbine) |
| Stock Material | Glass-filled nylon |
| Finish | Black |
| Adjustment Options | Butt plate (3-axis), cheek rest, length of pull |
| Included Components | MBA-3 stock, mil-spec buffer tube, .308 recoil buffer, buffer spring, end plate, castle nut |
| Sling Mounts | Multiple points |
| Accessory Rail | Bottom Picatinny |
Yes, this Luth-AR assembly is designed for AR-10 platforms in .308 and uses a mil-spec diameter carbine buffer tube. As long as your .308 AR-10 lower accepts a standard mil-spec buffer tube, this kit will fit. If you're unsure about your specific receiver, verify that it takes mil-spec (not commercial) diameter tubes before ordering.
Yes. The complete assembly includes the MBA-3 stock, mil-spec buffer tube, .308 carbine recoil buffer, buffer spring, end plate, castle nut, and anti-rattle screw. You have all the parts needed to install the entire rear assembly on your .308 AR-10 lower receiver. No additional buffer hardware is required.
Absolutely. The MBA-3 features an adjustable length of pull to dial in your ideal shoulder position, plus an adjustable cheek rest to align with your optic or iron sights. The 3-axis butt plate also adjusts for angle. These controls let you customize the stock to your body, gear, and shooting setup.
The MBA-3 includes multiple sling mounting points built into the stock, giving you flexibility to attach your preferred carry or retention system. There's also a bottom Picatinny rail if you want to mount a rear monopod or other accessory for precision shooting or field work.
Luth-Ar
The Luth-AR AR adjustable buttstock assembly delivers customizable ergonomics and a complete buffer tube solution for AR-10 builds in .308 diameter specs. This mil-spec buffer assembly ships as a full kit—stock, buffer tube, spring, buffer, end plate, and castle nut included—so you have everything needed to install a properly functioning rear assembly on your .308 AR-10 lower receiver. If you're building or upgrading a modern sporting rifle chambered in .308 and want fine-tuned fit and flexibility right out of the box, this is a genuine drop-in option that handles the job without guesswork.
The MBA-3 stock itself is engineered around real shooter adjustability. The 3-axis butt plate lets you dial in angle, the cheek rest stacks to your preferred sight picture, and length of pull adjusts to match your frame and gear. Glass-filled nylon construction keeps weight down while delivering durability, and the anti-rattle screw locks everything tight to the mil-spec buffer tube with zero wobble. You also get multiple sling mounting points for your preferred carry system and a bottom Picatinny rail for a rear monopod if you're setting up for precision work or long-range drills.
Installation is straightforward—the stock slides onto the buffer tube and the included hardware does the rest. Mil-spec diameter compatibility means it's built for the standard .308 carbine buffer tube dimensions, so fitment is predictable. Whether you're running a hunting rifle, a target gun, or a duty-type build, this assembly covers the rear end of the platform with the kind of user-driven adjustment that beats a fixed stock on any platform.
| Product | Luth-AR MBA-3 Adjustable Buttstock Assembly |
| Platform Compatibility | AR-10 (.308) |
| Buffer Tube Diameter | Mil-Spec (.308 carbine) |
| Stock Material | Glass-filled nylon |
| Finish | Black |
| Adjustment Options | Butt plate (3-axis), cheek rest, length of pull |
| Included Components | MBA-3 stock, mil-spec buffer tube, .308 recoil buffer, buffer spring, end plate, castle nut |
| Sling Mounts | Multiple points |
| Accessory Rail | Bottom Picatinny |
Yes, this Luth-AR assembly is designed for AR-10 platforms in .308 and uses a mil-spec diameter carbine buffer tube. As long as your .308 AR-10 lower accepts a standard mil-spec buffer tube, this kit will fit. If you're unsure about your specific receiver, verify that it takes mil-spec (not commercial) diameter tubes before ordering.
Yes. The complete assembly includes the MBA-3 stock, mil-spec buffer tube, .308 carbine recoil buffer, buffer spring, end plate, castle nut, and anti-rattle screw. You have all the parts needed to install the entire rear assembly on your .308 AR-10 lower receiver. No additional buffer hardware is required.
Absolutely. The MBA-3 features an adjustable length of pull to dial in your ideal shoulder position, plus an adjustable cheek rest to align with your optic or iron sights. The 3-axis butt plate also adjusts for angle. These controls let you customize the stock to your body, gear, and shooting setup.
The MBA-3 includes multiple sling mounting points built into the stock, giving you flexibility to attach your preferred carry or retention system. There's also a bottom Picatinny rail if you want to mount a rear monopod or other accessory for precision shooting or field work.
