Home / Gun Parts / Maxim Defense Industries / Maxim Defense PDX AR-15 Complete Upper Receiver 300 AAC Blackout 5.5" Barrel Arid
Maxim Defense PDX AR-15 Complete Upper Receiver 300 AAC Blackout 5.5" Barrel Arid

Maxim Defense PDX AR-15 Complete Upper Receiver 300 AAC Blackout 5.5" Barrel Arid

Lowest Price
MSRP
$1,295
Savings
18% off
Verified In Stock at
7 Stores
Updated
Aug 26, 2026
HATEBRAKE installed under handguard
HK height rail for a more rigid upper receiver
M-slot compatible handguard
Maxim Mil-Spec BCG or PDX/SCW compatible BCG
Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum]
Ships With Milspec BCG

Specifications

Caliber
Model
PDX
MPN
MXM-47826
UPC
680017478261

Description

The Maxim Defense PDX upper receiver 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 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 U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable. The included HATEBRAKE increases reliability and is tucked under the M-Lok handguard. These upper receiver groups ship complete, including a Maxim Defense Mil-Spec or SCW bolt carrier group, Radian Raptor charging handle, and Maxim Defense hand stop, ready to shoot right out of the box. FeaturesIncreased reliability due to included HATEBRAKEM-slot compatible handguardMilitary-grade materials [17-4 Stainless Steel, 7075 and 6061 Aluminum]HK height rail for a more rigid upper receiverInstalls on any Mil-Spec lower receiver
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