The MBA includes the Following features:
Buttstock assembly to mount to a Carbine AR
Fits all .223 and most .308 AR style rifles
Easy to Replace and quick to install
It adds up to 1-inch of height on the cheek rest, and an additional 1-1/16 inch length of pull
Made of super strong glass-filled nylon, weighs roughly half that of comparable stocks coming in at just 18 ounces.
Includes a Picatinny Rail on the bottom rear of the Stock Body to attach your choice of many accessories.
Designed a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock. This also allows you to secure the stock in your favorite position.
3-axis adjustable butt plate assembly (keep in mind this butt plate assembly is interchangeable with the original MBA-1 Buttstock) will have 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 1/2 inch left or right cast.
Adapts To Existing Commercial and Mil-Spec Buffer Tubes
Certain after Market Commercial Buffer Tubes that exceed 1.172? may not fit
The MBA-3 and MBA-4 will come in black.
Flat dark earth and Pink will be available in a few more months
Length of Pull (LOP) - Extended: 15 5/8?
Length of Pull (LOP) - Collapsed: 11 11/16?
Overall Length Extended: 8 3/4?
Overall Length Collapsed: 7 11/16?
Weight: 18.5 ounces
Items NOT included:
Sling Swivels,Carbine Buffer tube,Carbine Buffer Body Carbine Buffer Spring,or Latch Plate
Lock Ring Installation Notes:
When tightening the anti rattle set screw, be careful not to over tighten as it may cause the threaded insert to separate from the plastic stock body.
 "The MBA-3")