Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate FDE. The MBA-1 is designed to work with a standard A2 rifle style buffer tube and features a 3-Axis Buttplate with Length-of-Pull adjustment as well as Height and Lateral adjustments and an adjustable cheek rise in a low-cost lightweight strong and high-quality design. The modular design of the MBA Buttstock allows you to configure your buttstock to your specific and personal needs. The MBA-1 requires a A2 Rifle buffer tube. Please review the information provided in the Requirements tab. The MBA features multiple attachment points for a sling including molded pockets that will accept Grovtec QD cups sold separately. Specifications for Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate: Manufacturer: Luth-AR Number of Sling Points: 2 Gun Model: AR-10 AR-15 Additional Features: A2 Rifle Buffer Tube Will need GT-CUP Adds 1 1/16 inch Length: 10 3/8 - in 10.375 in Condition: New Gun Make: AR Platform Gun Type: Rifle Fabric/Material: Strong Glass Filled Nylon Features of Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate MBA-1 Rifle Buttstock with 3-Axis Adjustable Butt Plate Assembly Fully Adjustable Buttstock assembly to mount to a rifle (A2 Round Standard Tube) This is their fixed stock The MBA-1 requires a A2 Rifle buffer tube. Please review the information provided in the Requirements tab. Additional 1in height on cheek rest Modular buttstock assembly for the AR Interchangeable with standard A1 or A2 buttstocks or any aftermarket buttstock with overall length of approximately 10.5in Fully Ambidextrous and can be comfortably used shooting off either shoulder (Cheek piece pre-installed for right handed shooters but can be installed on either side for right or left hand shooters) Cheek piece not only moves up and down it also moves back and forth on the stock NOT interchangeable with carbine/collapsable rifles with telescoping assemblies (6-position tubes). You will need to purchase a MBA-3 or MBA-4 to fit these carbine tubes Package Contents: Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate What firearm models does the manufacturer say Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate is compatible with? The manufacturer says that Luth-AR MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate is compatible with AR-15 AR-10Luth-AR MBA-1F-3AX: MBA-1 Modular Buttstock Assembly w/ 3-Axis Butt Plate FDE