The Maxim Defense CPS MD9 9mm Luger Pistol MXM48174 (UPC 680017481742) is a compact, feature-rich AR9 platform built for shooters who demand premium components, modern ergonomics, and serious performance in a short, maneuverable package. With its 5.50" threaded barrel, Urban Grey anodized 7075-T6 aluminum receiver, Maxim CQB brace, and Glock®-compatible 25-round magazine, this MD9 variant is tailor-made for home defense, range work, and personal protection where reliability and control matter most. Impact Guns+2reddotarms.com+2
Key Features – Maxim Defense CPS MD9 MXM48174
Built on the MD9 Platform – Compact AR9 Performance
The CPS MD9 pistol belongs to Maxim Defense’s MD9 series, engineered from the ground up as a high-performance AR9 system for both professional and civilian use. These guns are built to run hard, offering: Maxim Defense+2Classic Firearms+2
Robust construction with mil-spec 7075-T6 receivers
A free-floating barrel for enhanced accuracy
An advanced buffer system that tames recoil and helps with fast follow-up shots
In the CPS MD9 configuration (MXM48174), you get all of that engineering in a compact pistol package that’s easy to maneuver in tight spaces, vehicles, or indoor environments.
5.50" Threaded CMV Barrel – Short, Fast, and Suppressor-Ready
At the heart of the CPS MD9 is a 5.50" chrome moly vanadium (CMV) barrel with a black nitride finish for durability, corrosion resistance, and ease of cleaning. Impact Guns+1
Key barrel benefits:
Threaded 1/2x28 – ready for muzzle devices and compatible 9mm suppressors
CMV steel – proven barrel material for extended service life
Black nitride finish – helps resist wear and fouling under high round counts
The barrel length hits a sweet spot: short enough for a compact, CQB-ready package, yet long enough to maintain reliable cycling and good velocity with common 9mm defensive and training loads.
Maxim Hate Brake – Better Control at the Muzzle
The CPS MD9 includes Maxim’s signature Hate Brake muzzle device, designed to redirect blast forward and help reduce perceived recoil and muzzle rise. Impact Guns+2Classic Firearms+2
That means:
More comfortable shooting, especially in confined spaces
Less blast directed back toward the shooter or team members
Faster, more controllable follow-up shots in defensive or competition scenarios
Urban Grey Anodized 7075-T6 Receiver – Durable and Distinctive
The upper and lower receivers are machined from 7075-T6 aluminum and finished in a striking Urban Grey anodize, giving the CPS MD9 a modern, tactical aesthetic that also stands out from basic black builds. Impact Guns+2Hinterland Outfitters+2
7075-T6 is stronger than standard 6061 aluminum, contributing to long-term durability
Anodizing enhances corrosion resistance and surface hardness
Urban Grey contrasts nicely with the black barrel, handguard, brace, and grip
If you’re seeking an AR9 pistol that looks as high-end as it feels, the Urban Grey CPS MD9 checks that box.
Free-Floating M-Rax / M-LOK Handguard – Ready for Accessories
Every CPS MD9 is built with a custom free-floating handguard featuring M-Rax and M-LOK compatibility, providing a monolithic-style upper platform for accessories. gunpartssupplies.com+2Classic Firearms+2
You can easily mount:
White lights or IR illuminators
Red dot or offset backup sights (on the upper/rail)
Foregrips, hand stops, or barricade stops
Sling mounts and other M-LOK accessories
The free-float design avoids pressure on the barrel, helping maintain accuracy and consistency, especially when you’re driving the gun hard off barricades or shooting supports.
Maxim CQB Brace – Compact, Comfortable Stability
One of the standout features of this model is the black Maxim CQB brace system attached to the rear. This buffer tube-style CQB setup is designed to be: Greentop+3Paducah Shooters+3reddotarms.com+3
Compact – keeps overall length short for tight quarters
Adjustable and ergonomic – provides a more stable shooting platform compared to bare tubes
Visually integrated – its black finish complements the barrel, handguard, and grip for a cohesive look
For shooters who want the feel and performance of a Maxim CQB stock/brace on a pistol-format AR9, the CPS MD9 delivers that out of the box (always confirm current brace regulations in your jurisdiction).
ALG Combat Trigger – Clean, Predictable Pull
Maxim Defense equips the CPS MD9 with an ALG Combat Trigger, a well-regarded upgrade over standard mil-spec triggers. Palmetto State Armory+2Impact Guns+2
Benefits include:
A more crisp, consistent break than basic GI triggers
Reduced grittiness for better feel and control
Enhanced shootability for both fast strings and precise shots
Whether you’re running drills, training indoors, or shooting steel at speed, the trigger helps you get the most out of the MD9’s inherently soft-shooting 9mm platform.
Glock®-Compatible 25-Round Magazine – Common, Reliable Feeding
The CPS MD9 is designed to run on Glock-pattern 9mm magazines and typically ships with a 25-round magazine for plenty of on-board capacity. Ready Gunner+3Impact Guns+3GrabAGun+3
That means:
Easy to find additional magazines on the market
Cross-compatibility if you already own Glock 19 or longer-frame 9mm magazines
Flexible setup for range, defense, or competition
Using a proven magazine pattern contributes to overall reliability and simplifies logistics for serious shooters.
Ambidextrous Controls & Ergonomics
The MD9 series is built with modern ergonomics in mind, and this CPS MD9 pistol benefits from features like: Miami Shooters Supply+3Palmetto State Armory+3gunpartssupplies.com+3
Ambidextrous magazine release – useful for left-handed shooters or off-hand transitions
Thumb safety in a familiar AR-style configuration
Enhanced charging handle and selector (often Radian components) for smoother manipulation
Combined with the polymer grip, these control upgrades make the CPS MD9 feel like a premium AR platform right out of the box.
Ideal Roles for the Maxim Defense CPS MD9 9mm
Thanks to its compact size, manageable recoil, and feature-rich design, the Maxim Defense CPS MD9 MXM48174 excels in several roles (where legal and appropriate):
Home and personal defense – short overall length and soft recoil make it easy to manage in close quarters
Range training tool – 9mm ammo cost and availability encourage high-volume practice
Pistol-caliber carbine (PCC) style competition pistol – AR-like controls plus Glock mags are ideal for games and drills
Vehicle or travel companion (with proper legal compliance) – compact form factor is well-suited for secure, transport-legal setups
Always follow all federal, state, and local laws regarding possession, transport, and configuration of AR pistols and brace-equipped firearms.
Technical Specifications – Maxim Defense CPS MD9 Urban Grey MXM48174
Why Choose the Maxim Defense CPS MD9 MXM48174?
If you’re searching for a premium 9mm AR pistol that blends compact dimensions with top-tier components, the Maxim Defense CPS MD9 9mm Luger 5.50" Urban Grey is a standout choice.
You get:
A compact, suppressor-ready 5.5" AR9 pistol with a durable CMV barrel
A distinctive Urban Grey anodized 7075-T6 receiver set
The ultra-compact Maxim CQB brace and ergonomic polymer grip
A free-floating M-Rax/M-LOK handguard ready for lights, grips, and mission-essential accessories
Reliable Glock®-compatible magazines and a refined ALG Combat trigger
From advanced home-defense builds to high-end range toys and PCC-inspired setups, the CPS MD9 MXM48174 is designed to deliver Maxim-level performance in a sleek, controllable 9mm package.
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