MBA-5 Buttstock 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(TM) Quick Detach sling cup ready*. Paired with our Chubby Grip® Mfg: Luth-Ar