
Availability: In Stock
The Luth-AR MBA-2 Black Lightweight Rifle Buttstock is a fixed buttstock designed for AR-pattern rifles chambered in .223 and most .308 platforms. Built from glass-filled nylon, this skeleton-style stock weighs just 0.7 lbs, making it an excellent choice for hunters and shooters who want to shed weight without sacrificing strength or control. It mounts directly to standard A2 round buffer tubes and installs in minutes with the included A2 buttstock screw.
The MBA-2's minimalist design doesn't mean minimal function. The integrated castle nut and lock ring eliminate loose parts, while the ergonomic profile gives you a solid cheek weld and natural trigger reach. If you run .223 or .308 AR platforms with fixed stocks and want a durable, lightweight upgrade over plastic-fantastic alternatives, this stock delivers straightforward reliability at the back end of your rifle.
The MBA-2 is also modular. Luth-AR makes an optional cheek piece that adds height to your cheek rest, and their butt plate assemblies extend length of pull by approximately 1 1/16 inches—useful if you run a thicker recoil pad or need extra reach. It's fully compatible with A2 or A1 stocks and aftermarket options with an overall length around 10.5 inches, but it will not fit carbine-length (6-position collapsible) buffer tubes; if you run a telescoping stock tube, step up to the MBA-3 or MBA-4 instead.
For precision shooters, hunters, and range competitors who prefer a fixed platform and want to lose unnecessary weight, the MBA-2 is a no-nonsense, affordable backbone.
| Stock Type | Fixed skeleton buttstock |
| Buffer Tube Compatibility | A2 round standard tube |
| Rifle Compatibility | .223 and most .308 AR-pattern rifles |
| Material | Glass-filled nylon |
| Weight | 0.7 lbs |
| Color | Black |
| Approximate Overall Length | ~10.5 inches |
| Hardware Included | A2 buttstock screw, integrated castle nut and lock ring |
The MBA-2 works with .223 and most .308 AR-pattern rifles, as long as your rifle has a standard A2 round buffer tube. If your rifle features a collapsible 6-position carbine tube, you'll need the MBA-3 or MBA-4 instead.
The MBA-2 ships with an A2 buttstock screw for mounting to your buffer tube. The castle nut and lock ring are integrated into the stock design, so there are no loose fasteners to track separately.
Yes. Luth-AR offers an optional cheek piece that adds approximately 1 inch of height to your cheek rest, and butt plate assemblies that extend your length of pull by roughly 1 1/16 inches. Both are designed to work with the MBA-2.
The MBA-2 is interchangeable with standard A2 or A1 buttstocks and aftermarket fixed stocks with an overall length of approximately 10.5 inches, as long as they mount to the same A2 round buffer tube. Do not use it with collapsible or 6-position carbine tubes.




SKU: 115692272 • Width: 6in • Height: 2.5in • Depth: 12.32in • Weight: 0.94oz





Availability: In Stock
The Luth-AR MBA-2 Black Lightweight Rifle Buttstock is a fixed buttstock designed for AR-pattern rifles chambered in .223 and most .308 platforms. Built from glass-filled nylon, this skeleton-style stock weighs just 0.7 lbs, making it an excellent choice for hunters and shooters who want to shed weight without sacrificing strength or control. It mounts directly to standard A2 round buffer tubes and installs in minutes with the included A2 buttstock screw.
The MBA-2's minimalist design doesn't mean minimal function. The integrated castle nut and lock ring eliminate loose parts, while the ergonomic profile gives you a solid cheek weld and natural trigger reach. If you run .223 or .308 AR platforms with fixed stocks and want a durable, lightweight upgrade over plastic-fantastic alternatives, this stock delivers straightforward reliability at the back end of your rifle.
The MBA-2 is also modular. Luth-AR makes an optional cheek piece that adds height to your cheek rest, and their butt plate assemblies extend length of pull by approximately 1 1/16 inches—useful if you run a thicker recoil pad or need extra reach. It's fully compatible with A2 or A1 stocks and aftermarket options with an overall length around 10.5 inches, but it will not fit carbine-length (6-position collapsible) buffer tubes; if you run a telescoping stock tube, step up to the MBA-3 or MBA-4 instead.
For precision shooters, hunters, and range competitors who prefer a fixed platform and want to lose unnecessary weight, the MBA-2 is a no-nonsense, affordable backbone.
| Stock Type | Fixed skeleton buttstock |
| Buffer Tube Compatibility | A2 round standard tube |
| Rifle Compatibility | .223 and most .308 AR-pattern rifles |
| Material | Glass-filled nylon |
| Weight | 0.7 lbs |
| Color | Black |
| Approximate Overall Length | ~10.5 inches |
| Hardware Included | A2 buttstock screw, integrated castle nut and lock ring |
The MBA-2 works with .223 and most .308 AR-pattern rifles, as long as your rifle has a standard A2 round buffer tube. If your rifle features a collapsible 6-position carbine tube, you'll need the MBA-3 or MBA-4 instead.
The MBA-2 ships with an A2 buttstock screw for mounting to your buffer tube. The castle nut and lock ring are integrated into the stock design, so there are no loose fasteners to track separately.
Yes. Luth-AR offers an optional cheek piece that adds approximately 1 inch of height to your cheek rest, and butt plate assemblies that extend your length of pull by roughly 1 1/16 inches. Both are designed to work with the MBA-2.
The MBA-2 is interchangeable with standard A2 or A1 buttstocks and aftermarket fixed stocks with an overall length of approximately 10.5 inches, as long as they mount to the same A2 round buffer tube. Do not use it with collapsible or 6-position carbine tubes.
SKU: 115692272 • Width: 6in • Height: 2.5in • Depth: 12.32in • Weight: 0.94oz



