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This is a Maxim Defense Industries known as the PDX chambered in 300 Blackout, model MXM-47827. 

The NEW Maxim Defense PDX(TM) U.R.G is built to handle the fierce demands of the Tier 1 community and designed to install on any Mil-Spec lower receiver. With the PDX(TM) U.R.G" you dominate close quarter encounters and achieve maximum energy on target without sacrificing accuracy at distance. At just 14" in overall length and a 5.5" barrel" the PDX(TM) U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable. The PDX(TM) U.R.G. is also equipped with newly invented Maxim HATEBRAKE(TM) Muzzle Booster. This patent-pending device significantly reduces recoil" decreases the flash signature" pushes gasses and concussion waves downrange away from the operator improving overall execution in short barrel pistols and rifles. The PDX U.R.G. uses a Direct Impingement system. 

Features: 

HATEBRAKE installed under handguard 

M-slot compatible handguard 

Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum] 

HK height rail for a more rigid upper receiver 

Maxim Mil-Spec BCG or PDX/SCW compatible BCG 

Ships With Milspec BCG

MAXIM PDX UPPER 300BLK 5.5" BLK

$1,165.99Price
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