Description
MBA-3(Modular Buttstock Assembly) for AR rifles. NB! this item is in Black. The Flat Dark Earth version is listed separately!
- Ergonomic design
- Adapts to existing commercial and mil-spec buffer tubes
- Certain aftermarket commercial buffer tubes that exceed 1.172″ diameter may not fit
- The MBA-3 and MBA-4 are available in Black or Flat Dark Earth (please see separate entries on this site)
- The vertical struts for the MBA-3 are fixed, therefore the cheek piece is not reversible like the MBA-1 however the cheek piece itself is designed with a cheek pad for left-handed use
- Caution: the MBA-3 and MBA-4 carbine buttstocks are not designed to be used with large bore calibres such as .338 Lapua or .50 BMG applications. See our MBA-1 rifle buttstock as an alternative
- The MBA-3 carbine buttstock is NOT interchangeable with A2 standard buffer tube. You will need to purchase a specific carbine buffer tube. If you don’t already have one they are available elsewhere on this site
- Fully adjustable carbine buttstock assembly to mount to a carbine rifle (6-positions mil-spec or commercial tube)
- The MBA-3 carbine buttstock requires a carbine buffer tube, either mil-spec or commercial. This stock works with both carbine commercial and mil-spec tubes/assemblies.
- Additional 1″ height on cheek rest
- 3-axis adjustable butt plate assembly extends additional 1 1/16″ length of pull and includes the following movement:
- Horizontal for linear adjustment (i.e. length of pull)
- Vertical for a perfect butt plate fit into the curvature of the shoulder.
- Lateral adjustment for a ½ inch left or right cast
- This butt plate assembly is interchangeable with the original MBA-1 buttstock
- Includes picatinny rail on the bottom rear of the stock body to attach your choice of many accessories.
- Features a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstocks. This also allows you to secure the stock in your favourite position.
- The MBA-3 comes with a medium soft rubber recoil pad, Duro 85.
- The Luth-AR MBA-3 weighs roughly half that of comparable stocks coming in at just 18.5 ounces.
- Fits all .223 and .308 AR carbine style rifles
- Super strong glass filled nylon
- Easy to replace and quick to install
- Uses 4 out of the 6 positions on a mil-spec or commercial tube
- If you require a butt stock that will utilize the first 2 holes of the buffer tube to fully collapse, you can remove the cheek rest from the MBA-3





