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HM Defense 9.5″ MONOBLOC Upper Receiver


Out of stock

9.5 inches…we won’t tell your wife what that really looks like.

HM Defense’s mission is to advance AR15 / AR10 rifle technology to its highest level. Noble work, ay? They strive to create rifles that are more accurate, easier to maintain and dependable in extreme conditions.

The 9.5″ MONOBLOC upper features an HM Defense barrel with an integral, machined, and patented gas block, alongside a carbine gas system. It is also 4150 Chromoly, match grade, tripled honed, and button rifled. Its handguard is 8.5″ of free-floating picatinny rail goodness with Magpul M-LOK, and is machined from 6061-T6 aluminum. Construction is 7075-T6 aluminum with a hard coat anodized finish. The MONOBLOC upper also includes a patented HMB bolt, Mil-Spec components, charging handle, and a dust cover with an American Flag, though you can easily probably swap that out for some silly looking confederate flag in five minutes. If you want to do that, shop somewhere else.

Brand: HM Defense


Weight: 48 ounces

Barrel Length: 9.5 inches

Handguard Length: 8.5 inches

Barrel Chamber: 5.56 NATO

Manufacturer Part #9-5MBUP-556

Ibex Armament LLC is a full-service FFL dealer. Please note that you must have an FFL dealer receive this shipment for you. You must contact your local dealer and provide us with a copy of their license if it is not already in our system. Local pick-up is available in Rosemount, MN.


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