Sale
Luth-AR MBA-1 Stock w/ Buffer Assembly, A2 Extension Tube, Standard Buffer, .308 Buffer Spring Black, Adjustable Cheek Piece & Length of Pull
$190.77
$202.95
(You save
$12.18
)
The Luth-AR MBA-1 adjustable stock kit with buffer assembly gives you a complete, ready-to-build buttstock system for your .308/7.62 AR rifle. This isn't stripped-down or proprietary—it's a full modular package that includes everything you need to set up an A2-style buffer system on a rifle-length lower: the MBA-1 buttstock itself, A2 extension tube, standard buffer, and .308 buffer spring. Unlike generic fixed stocks, the MBA-1 lets you dial in both length-of-pull and cheek rise to match your body and shooting position, which matters whether you're running a rifle for hunting, competition, or the range.
The real strength here is modularity. The MBA-1's design accepts multiple sling attachment points—including molded pockets for Grovtec QD cups (sold separately)—and the cheek riser ships installed for right-handed shooters but can be flipped to the opposite side for left-handed use. You get genuine ambidextrous comfort without proprietary constraints. The stock itself weighs just 18.4 oz, keeping your rifle-length build lean without sacrificing adjustability or durability.
This is an A2-pattern rifle stock, so it won't fit carbine-length lowers with telescoping assemblies; make sure your platform is a full rifle-length system before ordering. If you're replacing an existing A1 or A2 stock with similar overall dimensions, the MBA-1 slides into the same tube. It's the kind of no-fuss upgrade that lets you focus on fit and function rather than hunting for compatibility charts.
Key Features
- Adjustable length-of-pull (1 1/16" additional travel) for customized fit
- Adjustable cheek rise for consistent sight picture and shooting comfort
- Modular design with multiple sling attachment points and Grovtec QD cup pockets
- Complete kit includes MBA-1 buttstock, A2 extension tube, buffer, and .308 buffer spring
- Fully ambidextrous cheek riser; installable left or right
- Lightweight buttstock (18.4 oz) for minimal weight penalty
Specifications
| Buttstock Type | MBA-1 |
| Buffer Tube | Rifle (A2) |
| Caliber | .308/7.62 |
| Buffer Weight | 5.3 oz |
| Buttstock Weight | 18.4 oz |
| Collapsed Length-of-Pull | 10.5" |
| Extended Length-of-Pull | 11.5" |
| Adjustable Length-of-Pull Range | 1 1/16" |
| Cheek Rise | 1" (fully extended) |
| Color | Black |
Frequently Asked Questions
Will this fit my AR rifle, and what's included?
The MBA-1 kit is designed for .308/7.62 AR rifles with rifle-length (A2) buffer tubes. It comes complete with the MBA-1 buttstock, A2 extension tube, standard buffer, and .308 buffer spring—everything needed to assemble an A2 buffer system on a rifle lower. This kit is not compatible with carbine-length lower receivers or telescoping carbine buffer assemblies.
Can I adjust the length-of-pull and cheek rise?
Yes. The MBA-1 features both adjustable length-of-pull (with up to 1 1/16" of additional travel beyond the 10.5" collapsed position) and a removable, adjustable cheek riser. The cheek rise ships installed for right-handed shooters but can be repositioned to either side for left-handed use, giving you true ambidextrous functionality.
What sling attachment options does it have?
The MBA-1 includes multiple attachment points and molded pockets designed to accept Grovtec QD cups (sold separately). A rail attachment is also available as an optional accessory. Standard sling swivels are sold separately.
Will this replace my existing A2 buttstock?
Yes, the MBA-1 is interchangeable with standard A1 or A2 buttstocks, or any aftermarket rifle-length buttstock with an overall length of approximately 10.5".
