Description
The Maxim Defense PDX Upper .300 Blackout 5.5″ ARID is designed for the ultimate performance in close-quarter encounters. Built to meet the rigorous demands of Tier 1 operators, this upper receiver is compatible with any Mil-Spec lower receiver. With a compact length of just 14 inches and a barrel length of 5.5 inches, it excels in concealment and personal defense. Featuring the innovative Maxim HATEBRAKE Muzzle Booster, this upper reduces recoil and minimizes flash signature, allowing for improved accuracy and control in rapid-fire situations. Upgrade your AR15 with the Maxim PDX Upper for unmatched reliability and precision.


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