The Luth-AR MBA-5 Buttstock is the latest in the MBA Series. Designed as an affordable, lightweight, adjustable carbine buttstock with a paddle-style adjustment lever allowing rapid positioning. The wide flared cheek rest provides a comfortable cheek weld and the integrated Picatinny rail allows for attaching a mono-pod or other accessories and the Anti-rattle set screw allows for adjustment when used with a Mil-spec buffer tube. The MBA-5 requires a Carbine buffer tube, either Mil-Spec or Commercial. Please review the information provided in the Requirements tab below. The MBA-5 is Grovtec Quick Detach sling cup ready. Paired with our Chubby Grip and Palm Handguard the New MBA-5 is just the right choice for your AR. Note: The MBA-5 is designed with a non-adjustable, flared cheek rest and is not intended to provide vertical adjustment. Specifications for Luth-AR MBA-5 Stock Assembly: Manufacturer: Luth-AR Gun Model: M16, AR-15, AR-10, M4 Gun Type: Carbine Weight: 8.9 oz Length: 11.5 - 14.5 in Included Accessories: Standard Condition: New Buffer Tube Size: Commercial or MIL-Spec Fabric/Material: Glass-Filled Nylon, DuPont Zytel FRN Polymer Caliber: .308 Winchester, .223 Remington, 5.56x45mm NATO, 9mm Luger Gun Make: AR Platform Features of Luth-AR MBA-5 Stock Assembly Lightweight Carbine Buttstock MBA Ergonomic Styling Paddle Adjustment Lever for Rapid Positioning Flared Cheek Rest Anti-rattle set screw Integrated Picatinny Rail for Mono-pod attachment Available in Black or Flat Dark Earth Quick Release Cup Pockets, both sides Rubber Buttpad High-Strength Glass-filled Nylon Package Contents: Luth-AR MBA-5 Stock Assembly What firearm models does the manufacturer say Luth-AR MBA-5 Stock Assembly is compatible with? The manufacturer says that Luth-AR MBA-5 Stock Assembly is compatible with AR-15, M4, M16, AR-10