Maxim Defense Announces New MD:11 Series

    Maxim Defense Announces New MD:11 Series

    Maxim Defense MD:11 (Maxim Defense)

    Maxim Defense have announced the launch of a new 7.62×51mm AR, the MD:11. Maxim Defense describe the MD:11 as an update of the original Stoner AR-10 design. It will be available in 6.5 Creedmoor and .308Win/7.62×51mm. This marks a move into a new area for Maxim Defense, their recent products have focused on small, compact PDW carbines in 5.56×45, .300BLK and 7.62×39mm.

    Maxim Defense Announces New MD:11 Series

    Maxim Defense @ TFB:

    Here’s Maxim Defense’s announcement in full:

    Maxim Defense Industries is proud to announce the launch of their new direct impingement large frame MD:11 series, a rifle based on the SR-25 cut pattern.

    “The MD:11 is an updated variant of the original Stoner AR-10 design. The Direct impingement system still functions like most. There has been no serious change to the inside of the upper receiver; the gas tube forces all that gas into a key screwed atop the bolt carrier group. The gas expands inside the BCG, forcing it backwards into the buffer tube. There is no ‘chamber,’ but more of a diversion like the original design.”

    The MD:11 will be available in 6.5 Creedmoor or .308 Winchester utilizing an 18 in. Proof Research carbon fiber or stainless-steel barrel. Using these barrels keeps the weight down to just 9lbs. This weapon was initially designed for United States Special Operations Command (USSOCOM) requirements. However, once the decision was made to commercialize the SOCOM requirement (within limits), 6.5 Creedmoor and .308 Winchester were deemed the best calibers.

    It also comes standard with a carbine buffer system, B5 SOPMOD stock, and utilizes the Gisselle SSA-E trigger. Initially, they are available in three colors; Urban, Arid, and Black.

    Maxim Defense MD:11 (Maxim Defense)

    Maxim Defense MD:11 Specifications

    • Model: MD:11
    • Action: Direct Impingement
    • Calibers: 6.5 Creedmoor & .308 Winchester
    • Overall Length: 37 in.
    • Barrel Length: 18 in.
    • Upper/Lower Construction: Billet 7075-T6 Reciever Set
    • Ambi Controls: Selector, Mag Release, Charging Handle
    • Weight, w/empty 20 RND magazine: 9lbs
    • Handguard Length: 15.5 in.
    • Handguard Acc. Attachment: M1913/M-Lok
    • Trigger Pull Weight: 2.9 – 3.8 lbs.

    Find out more about the MD:11 at

    Matthew Moss

    _________________________________________________________________________ – Managing Editor – Managing Editor

    Matt is a British historian specialising in small arms development and military history. He has written several books and for a variety of publications in both the US and UK. He also runs Historical Firearms, a blog that explores the history, development and use of firearms. Matt is also co-founder of The Armourer’s Bench, a video series on historically significant small arms.

    Here on TFB he covers product and current military small arms news.

    Reach Matt at: [email protected]