Maxim Defense PDX 5.5-Inch 5.56mm NATO/7.62mm Russian AR-15-Type Personal Defense Weapon (PDW)/Short Barreled Rifle (SBR) with Hate Brake Muzzle Booster! (Video!)

By David Crane
david (at) defensereview (dot) com

April 23, 2019

Maxim Defense showed DefenseReview (DR) their PDX 5.56mm NATO (5.56x45mm NATO)/7.62mm Russian (7.62x39mm Russian) AR (AR-15)-type Personal Defense Weapon (PDW)-type SBR (Short Barreled Rifle) at SHOT Show 2019, and we liked what we saw and handled. The Maxim Defense PDX sports a VERY short 5.5″ (5.5-inch) barrel with a Maxim Defense HATEBRAKE (also written “Hate Brake”) “Muzzle Booster” under the M-LOK tactical handguard/rail system in order increase back pressure (and thus reliability) and attenuate/mitigate muzzle blast and flash.

Since the Maxim Defense PDX’s barrel is so short, it requires a proprietary BCG (Bolt Carrier Group) and SCW Buffer and Spring system (with buffer spring). The PDX’s gas system is adjustable/tunable at the armorer level. The PDX also utilizes the Maxim Defense SCW Stock system, which limits stock length to 4″ (4 inches), and overall (OA) weapon lengh to 18.75″ (18.75 inches), when fully collapsed. The Maxim SCW stock can be pulled out one-handed to full extension for immediate weapon deployment. Empty weight is only 5 lbs 11 oz.

The civilian/commercial-market PDX variant will feature an ALG Defense trigger system, while the military and law enforcement variant will sport a Geissele Automatics trigger system.

Obviously, the Maxim Defense PDX is intended for lo-pro/lo-vis (low-profile/low-visibility Special Operations Forces (SOF) missions where a weapon might have to be concealed under light civilian clothing, including just an open button-down shirt or camp shirt.

DR doesn’t yet know if the PDX can be reliably suppressed, but we’ll try to find out, and update this article accordingly. In the meantime, enjoy DR’s video below of Maxim Defense’s Joe Wheeler taking us through the high points of the weapon’s features, specs and design goals.

Needless to say, Defense Review wouldn’t mind getting a PDX into DR writer/contributor and chief new-product tester Jeff Gurwitch’s very capable hands at some point, in whichever caliber he prefers.

Oh, and current MSRP is $2,299.00 USD, as of this writing, by the way, which isn’t too crazy.

Company Contact Info:

Maxim Defense
1265 Kuhn Dr. Ste 100
St. Cloud, MN 56301
Office: 239-580-7800
Email: info@maximdefense.com
Website: https://www.maximdefense.com

© Copyright 2019 DefenseReview.com (DR). All rights reserved. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links. If you are reading this article anywhere other than DefenseReview.com, please email us the website address/URL (where the unauthorized DR article reprint is located) at defrev (at) gmail (dot) com. Thank you.

All embedded DefenseReview.com (DR) photos and videos were shot with an Apple iPhone 6s Plus smartphone still/video camera.

Related Articles:

Geissele Automatics High Speed Selector (HSS): Drop-In, Spring-Loaded 45-Degree Instant On/Off Ambi (Ambidextrous) Full-Auto M4 Carbine/M16 Rifle Selector Switch and Super Select-Fire (SSF) Full-Auto Trigger Kit for More Hits on Fast-Moving Targets! (Video!)

Lantac LA-SF15 14.5″ Forged Tactical AR-15 Rifle/Carbine with Intermediate Direct Gas Impingement System Barrel and SPADA-ML Lightweight, Slimline Tactical Handguard/Rail System! (Video!)

Lantac Raven and Onyx Tactical AR-15 Billet Reciever Sets and Accessories for Custom AR Builds! (Video!)

Alpha Tarac Optical Accessory: Flip-Up Lens Doubles Your Red Dot Combat Optic’s Point of Impact! (Video!)

Nous Defions Arsenal Democracy NDAD Suppressor Upper Receiver Group (SURG) 8″ 5.56mm NATO/300 Blackout (300BLK) Select-Fire/Full-Auto Integrally/Recessed-Suppressed AR-15 Short Barreled Rifle/Personal Defense Weapon (SBR/PDW)! (Video!)

Arsenal Democracy AD PDW 8.5″ 5.56mm/300 Blackout (300BLK) Tactical AR-15 SBR (Short Barreld Rifle) with AD-PDW Stock Minimalist Buttstock and Ambi Controls for Dynamic CQB/CQC Gunfighting, Military PSD, and Vehicle Ops! (Video!)

Battle Arms Development B.A.D.-ASS Tactical AR-15 Carbine/SBR/PDW Components and Accessories: Titanium Gas Blocks, PDW Stocks (Buttstocks), Lower Receivers, Fluted Barrels and Sight Mounts…Oh, My! (Videos!)

NEMO Arms Tango 6 300 Blackout (300BLK) Combat/Tactical AR SBR with Integral Gemtech GMT-300BLK G-Core Titanium Silencer/Sound Suppressor for Dynamic Gunfighting and Hunting! (Video!)

Ferfrans SOAR-P 6.5 Grendel Select-Fire/Full-Auto Tactical Piston AR (AR-15-type) Rifle/Carbine/SBR Prototype: Ultimate All-Purpose Tactical AR-15-Type Weapon System for Military Combat? (Video!)

FERFRANS CQB Modular Muzzle Brake System (MMBS) with FF Concussion Reduction Device (CRD) for Semi-Auto-Only and Select-Fire/Full-Auto Tactical AR-15 Carbine/SBR’s (Video!)

Geissele Super Tricon Trigger: Semi-Straight Tactical AR-15 Carbine/Rifle Trigger Designed by Retired U.S. Navy SEAL Jeff Gonzalez for Tactical Shooting with Wet Gloves (Video!)

Geissele Automatics Super Dynamic Triggers with Flat Trigger Bow for Combat and Competition Applications: Meet the Geissele Super Dynamic-Combat (SD-C) Trigger, Super Dynamic-Enhanced (SD-E) Trigger and Super Dynamic 3-Gun (SD-3G) Trigger for Tactical AR-15 Carbines/Rifles and SBRs/Sub-Carbines

DR Action Video! Colt SCW (Sub-Compact Weapon) Personal Defense Weapon (PDW)-Type 5.56mm NATO AR SBR/Sub-Carbine Fired on Full-Auto at NDIA Range Day

My Love Affair with the Adams Arms 5.56 Tactical Elite 7.5″ PDW: Piston/Op-Rod AR SBR Upper Receiver for Mil/LE Special Operations Professionals and Civilian Tactical Shooters