If you're in search of the distinctive innovation of Maxim defense in a modernized AR-9 format, the MD-9 stands as the ultimate solution. Meticulously designed to cater to the escalating need for advanced AR9 style rifles in both the military and commercial sectors of today's market. Each MDX model boasts our signature free-floating barrel, accompanied by a tailor-made handguard to enhance both comfort and adaptability. These handguards offer a platform reminiscent of a monolithic upper receiver while facilitating M-Slot compatibility.