Maxim Defense
Maxim Defense, founded in 2014 and headquartered in St. Cloud, Minnesota, has rapidly evolved from an AR-15 stock specialist into a global developer of advanced firearms, suppressors, and related accessories. Initially gaining recognition at SHOT Show 2016 with its universal CQB-style stocks and stabilization braces, the company launched its first firearm platform, the PDX personal defense weapon, in 2019 — ultimately earning “Best of SHOT” honors from Recoil magazine. Maxim Defense’s signature PDX-SBR packs a 5.5‑inch barrel into a compact 18.75″ platform, built with military-grade materials like titanium, stainless steel, and high-grade aluminum. Patented features include the SCW stock system, HATEBRAKE muzzle booster, and modular M-RAX/M-Slot handguards — delivering exceptional ergonomics and performance in tight environments. The PDX:SD variant integrates a suppressor‑tuned DSX model featuring Maxim’s proprietary M-Kore technology, reducing gas blowback and noise while maintaining reliability. Beyond PDWs, Maxim Defense now offers a full product suite—including MD-series rifles (MD:9, MD:10L, MD:11, MD:15L), MDX, and SDX platforms—alongside stocks, suppressors, buffer systems, muzzle devices, and ammo accessories. The company’s suppressor lineup, especially the lightweight PRS model and MSX/MS-series, is gaining rapid popularity among hunters and tactical professionals. Committed to R&D, Maxim focuses on delivering purpose-built tools for military, law enforcement, and civilian markets—balancing innovation, industrial design, and field-tested durability.
Maxim Defense PDX
Explore submodels:
View products:
from $1,615.50
UPC:
680017478292
MPN:
MXM-47829
Caliber:
300 BLK
Finish:
Black
Capacity:
-
from $1,841.30
UPC:
680017478230
MPN:
MXM47823
Caliber:
300 BLK
Finish:
Black
Capacity:
20Rd
from $1,861.76
UPC:
680017478025
MPN:
MXM47802
Caliber:
223/5.56
Capacity:
20.0000
from $1,881.99
UPC:
680017478032
MPN:
MXM47803
Caliber:
223/5.56
Capacity:
20.0000
from $1,881.99
UPC:
680017478223
MPN:
MXM47822
Caliber:
300 BLK
Finish:
Flat Dark Earth
Capacity:
20Rd
from $1,908.52
UPC:
680017508418
MPN:
MXM-50841
Caliber:
223/5.56
Finish:
Anodized
Capacity:
30Rd
from $1,926.91
UPC:
680017508012
MPN:
MXM-50801
Caliber:
7.62x39mm
Finish:
Anodized
Capacity:
20Rd
from $1,926.91
UPC:
680017508036
MPN:
MXM-50803
Caliber:
223/5.56
Finish:
Anodized
Capacity:
30Rd
from $1,926.91
UPC:
680017508401
MPN:
MXM-50840
Caliber:
7.62x39mm
Finish:
Anodized
Capacity:
20Rd
from $1,946.99
UPC:
680017478001
MPN:
MXM47800
Caliber:
7.62x39mm
Capacity:
20.0000
See more "Maxim Defense PDX" products
Maxim Defense PDX
UPC:
680017478018
MPN:
MXM47801
Caliber:
7.62x39mm
Capacity:
20.0000
Full specification
Maxim Defense MD15L
View products:
from $1,119.00
UPC:
680017497354
MPN:
MXM-49735
Caliber:
223/5.56
Finish:
Anodized, Flat Dark Earth
Capacity:
30
from $1,218.99
UPC:
680017514846
MPN:
MXM-WDI-24
Caliber:
223/5.56
Finish:
Nitride / Type III Anodizing, Sniper Grey
Capacity:
30
from $1,243.48
UPC:
680017497347
MPN:
MXM-49734
Caliber:
223/5.56
Finish:
Anodized, Gray
Capacity:
30
from $1,243.48
UPC:
680017497378
MPN:
MXM-49737
Caliber:
223/5.56
Finish:
Anodized, Black
Capacity:
30
from $1,449.99
UPC:
680017497361
MPN:
MXM-49736
Caliber:
223/5.56
Finish:
Bazooka Green
Capacity:
30
from $1,449.99
UPC:
680017514815
MPN:
MXM-51481
Caliber:
223/5.56
Finish:
FDE
Capacity:
30
from $1,463.11
UPC:
680017490508
MPN:
MXM-49050
Caliber:
6mm ARC
Finish:
Black Cerakote colored finish over Type III hard coat anodize
Capacity:
10
from $1,463.11
UPC:
680017490515
MPN:
MXM-49051
Caliber:
6mm ARC
Finish:
Sniper Grey Cerakote colored finish over Type III hard coat ano
Capacity:
10
from $1,463.11
UPC:
680017490522
MPN:
MXM-49052
Caliber:
6mm ARC
Finish:
FDE
Capacity:
10
from $1,463.11
UPC:
680017490539
MPN:
MXM-49053
Caliber:
6mm ARC
Finish:
Sniper Grey Cerakote colored finish over Type III hard coat ano
Capacity:
10
Maxim Defense MD10L
View products:
from $1,540.76
UPC:
680017496838
MPN:
MXM49683
Caliber:
308 Win
Capacity:
20
from $1,540.76
UPC:
680017496852
MPN:
MXM49685
Caliber:
308 Win
Capacity:
20
from $1,556.99
UPC:
680017496821
MPN:
MXM49682
Caliber:
308 Win
Finish:
Sniper Gray Cerakote
Capacity:
20
from $1,556.99
UPC:
680017496845
MPN:
MXM49684
Caliber:
308 Win
Finish:
Bazooka Green
Capacity:
20
from $1,582.23
UPC:
680017496890
MPN:
MXM49689
Caliber:
6.5 Creedmoor
Finish:
Sniper Grey
Capacity:
20
from $1,582.23
UPC:
680017496906
MPN:
MXM49690
Caliber:
6.5 Creedmoor
Finish:
FDE
Capacity:
20+1
Maxim Defense MD9 Carbine
View products:
from $1,550.00
UPC:
680017514839
MPN:
MXM-51483
Caliber:
9mm
Finish:
Arid Finish
Capacity:
27
from $1,699.99
UPC:
680017482039
MPN:
MXM-48203
Caliber:
9mm
Finish:
Arid
Capacity:
33 + 1
from $1,700.99
UPC:
680017482022
MPN:
MXM-48202
Caliber:
9mm
Finish:
Black Cerakote
Capacity:
33
from $2,180.99
UPC:
680017482046
MPN:
MXM-48204
Caliber:
10 Gauge
Finish:
Urban Gray
Capacity:
33
Maxim Defense MDX
View products:
from $1,802.52
from $1,903.61
UPC:
680017481186
MPN:
MXM-48118
Caliber:
223/5.56
Capacity:
20Rd
from $1,903.61
UPC:
680017479626
MPN:
MXM-47962
Caliber:
223/5.56
Capacity:
20Rd
from $1,903.61
UPC:
680017480025
MPN:
MXM-48002
Caliber:
7.62x39mm
Capacity:
20Rd
from $1,903.61
UPC:
680017480032
MPN:
MXM-48003
Caliber:
7.62x39mm
Capacity:
20Rd
from $2,090.20
UPC:
680017479435
MPN:
MXM-47943
Caliber:
7.62x39mm
Capacity:
28+1
from $2,090.20
UPC:
680017481193
Caliber:
300 BLK
Finish:
Urban Grey
Capacity:
30
from $2,182.04
UPC:
680017479855
MPN:
MXM-47985
Caliber:
300 BLK
Capacity:
30
Other models
from $1,045.93
UPC:
680017480189
MPN:
MXM-48018
Caliber:
22 LR
Capacity:
10+1
Barrel Length:
5.9"
from $1,540.99
UPC:
680017483524
MPN:
MXM-48352
Caliber:
22 LR
Capacity:
10 rounds
Barrel Length:
5.9"
from $1,615.50
UPC:
680017478155
MPN:
MXM-47815
Caliber:
7.62x39mm
Barrel Length:
5.5"
from $1,615.50
UPC:
680017478285
MPN:
MXM-47828
Caliber:
300 BLK
Barrel Length:
5.5"
from $1,624.53
UPC:
680017481742
MPN:
MXM48174
Caliber:
9mm
Capacity:
-
Barrel Length:
5.50"
from $1,637.90
UPC:
680017481629
MPN:
MXM48162
Caliber:
9mm
Capacity:
27Rd
Barrel Length:
5.80"
from $1,975.50
UPC:
680017481612
MPN:
MXM-48161
Caliber:
9mm
Capacity:
27
Barrel Length:
5.80"
from $1,993.99
UPC:
680017481728
MPN:
MXM48172
Caliber:
9mm
Capacity:
-
Barrel Length:
5.50"
from $2,299.99
UPC:
680017479237
Caliber:
300 BLK
Capacity:
20Rd
Barrel Length:
8.75"
from $2,299.99
UPC:
680017481018
MPN:
MXM48101
Caliber:
300 BLK
Capacity:
20Rd
Barrel Length:
8.75"
from $2,425.50
UPC:
680017479220
MPN:
MXMX47922
Caliber:
300 BLK
Capacity:
20Rd
Barrel Length:
8.75"
from $3,505.99
UPC:
680017487256
MPN:
MXM-48725
Caliber:
-
Capacity:
-
Barrel Length:
-
Other products
from $267.31
UPC:
680017480370
MPN:
MXM-48037
Color:
Black
Gun Type:
Pistol
Length:
4.5″ closed; 5.75 1st position; 6.9 2nd position; 8.13 3rd position; 9.28 fully extended
from $324.36
UPC:
680017483517
MPN:
MXM-48351
Caliber:
22 Cal Rimfire
Diameter:
1
Material:
Aluminum
from $446.89
UPC:
680017497521
MPN:
MXM-49752
Caliber:
5.7x28mm
Design:
MonoKore
Construction:
Military-Grade Materials
from $556.06
UPC:
680017482091
MPN:
MXM-48209
Caliber:
.30 Caliber
Model:
PRS-30
Material:
7075 Aluminum with Grade 5 Titanium Thread Insert
from $596.42
UPC:
680017483609
MPN:
MXM-48360
Caliber:
6.5 Creedmoor
Model:
PRS-D
Material:
Grade 5 Titanium
from $704.84
UPC:
680017482176
MPN:
MXM-48217
Caliber:
9mm
Model:
MS-9
Core Material:
17-4 Stainless Steel
from $704.84
UPC:
680017482169
MPN:
MXM-48216
Caliber:
45 Caliber
Material:
17-4 Stainless Steel Core / 7075 Aluminum Tube
Finish:
DLC
from $802.22
UPC:
680017480646
MPN:
MXM48064
Caliber:
5.56 NATO
Model:
DS-K D
Material:
Titanium / Stainless Steel
from $829.00
UPC:
680017482121
MPN:
MXM-48212
Caliber:
338 Caliber
Model:
PRS-338
Material:
7075 Aluminum with Grade 5 Titanium Thread Insert
from $896.97
UPC:
680017483753
MPN:
MXM48375
Caliber:
30 Cal
Model:
DS-D
Material:
Titanium
from $896.97
UPC:
680017483722
MPN:
MXM48372
Caliber:
5.56
Model:
DS-D
Material:
Titanium
from $954.55
UPC:
680017496982
MPN:
MXM-49698
Caliber:
5.56 NATO
Construction:
Stainless Steel and Titanium
Finish:
Black Cerakote
User posted deals for Maxim Defense
(60 deals found)
Filter
2 months ago
The Maxim Defense MDX508 upper receiver is now available as a direct upgrade to your existing Mil-Spec lower receiver. It features an 8.5" barrel making it ideal for close-quarters situations. The included HATEBRAKE increases reliability and is tucked under the 9.5" 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.
Features
Increased reliability due to included HATEBRAKE
Armorer level adjustable gas block
- UPC: 680017479084
- MPN: MXM-47908
2 months ago
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.
- UPC: 680017478124
- MPN: MXM-47812
- Model: Maxim Defense PDX Upper Receiver
3 months ago
$1,969.99
Born from the SOCOM PDW solicitation, the NEW Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. The PDX dominates close-quarter encounters and achieves maximum energy on target.
At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a subcompact platform.
- UPC: 680017478254
- MPN: MXM-47825
- Model: Maxim Defense PDX SBR
3 months ago
The MD:10L is the value-packed battle rifle. Tough, accurate, and lightweight, youll want to take this rifle everywhere you go. For increased comfort and versatility, every MD:10L features our free-floating Slimline handguard. These handguards provide a monolithic-like upper receiver platform and M-Slot compatibility. FEATURES: A2 flash hider. M-Rax and M-Slot compatible handguard. Military-grade materials. Radian charging handle Magpul stock. Magpul grip. Magpul sights FUNCTIONS: Receives all AR10 DPMS Gen 1 Pattern magazines. MIL-SPEC + components and coatings. Fully and easily serviceable.
- UPC: 680017496906
- MPN: MXM49690
- Model: Maxim Defense MD10L
3 months ago
Maxim Defense sets the standard for quality and innovation with the MS-45 Suppressor, designed to excel in all shooting conditions and deliver unparalleled performance.
Features:
-Modular .45 Suppressor available in Standard and Long Configurations.
-Constructed with a durable 7075-T6 Aluminum Tube and 17-4 Stainless Steel Baffles.
-Components feature Hard Coat Anodized Aluminum for added durability.
-Equipped with a Dead-Air P Series Booster for enhanced functionality.
-Rifle/Pistol Rated for versatile use.
Functions:
- UPC: 680017482169
- MPN: MXM-48216
4 months ago
Voted BEST OF SHOT 2019 by RECOIL Magazine, the Maxim Defense PDX was born from the SOCOM PDW solicitation to meet the demands of the Tier 1 community.
Designed for close-quarter encounters, the PDX delivers maximum energy on target in a subcompact platform, measuring just 18.75″ in overall length.
- UPC: 680017478247
- MPN: MXM-47824
- Model: Maxim Defense PDX SBR
4 months ago
The Maxim Defense MS-9 Suppressor sets a new benchmark for excellence in the realm of suppressors, delivering unparalleled performance and durability. Here's a detailed overview of its key features and specifications:
Features:
-Modular Design: Offers both standard and long configurations, catering to diverse shooting preferences and applications.
-Robust Construction: Crafted with a 7075-T6 aluminum tube and 17-4 stainless steel baffles, ensuring ruggedness and longevity.
-Hard Coat Anodized Components: Enhances resistance to wear and corrosion, ensuring long-lasting performance.
- UPC: 680017482176
- MPN: MXM-48217
4 months ago
FUNCTIONS:
– Increase reliability and longevity with host firearms due to low gas blowback and low gain in host weapon cyclic rate compared to other more traditional suppressor designs.
– Drops sound to well below hearing safe levels (specific reduction based on weapon configuration, ammunition, barrel length, and atmospheric conditions). For example, the average measurement per MILSTD-1474D of 134dB on an 10.3” AR-15 chambered in 5.56 measured at the shooter’s left ear.
– Decreases flash, decreases recoil, increases accuracy.
– Fully and easily serviceable.
- UPC: 680017483548
- MPN: MXM-48354
5 months ago
SKU: MXM-47963
The Maxim Defense MDX 5.56 NATO Pistol with a 10.3" barrel offers a balance of compactness and performance, making it ideal for close-quarters combat (CQB) scenarios. Designed to meet the rigorous demands of Tier 1 operators, the MDX-510 is equipped with advanced features and technology to ensure reliability and durability in the toughest conditions.
Features:
Chambered in 5.56 NATO
10.3" Barrel
Hatebrake blast forward muzzle device
M-LOK free float handguard with handstop
HK height rail and receiver
Gen 7 CQB arm brace
Ambi safety and charging handle
- MPN: MXM-47963
5 months ago
The MD:9 Carbine excels at quick-pointing and soft-shooting. Perfect for a fun family day at the range but built to handle extreme conditions. Adding to the incredibly soft-shooting user experience is our all-new Roller Delayed Blowback buffer system, found in theMD:905, MD:908, and MD:9 Carbine
FEATURES:
M-Rax and M-Slot compatible handguard.
ALG Combat trigger.
Radian charging handle and selector.
Ambidextrous magazine release.
Fully floated barrel.
Last round hold open.
FUNCTIONS:
Receives all Glock 9mm pattern magazines, G19 and longer.
MIL-SPEC+ coatings and materials.
- UPC: 680017482039
- MPN: MXM-48203
- Model: Maxim Defense MD9 Carbine
6 months ago
The MD:9 Carbine excels at quick-pointing and soft-shooting. Perfect for a fun family day at the range but built to handle extreme conditions. Adding to the incredibly soft-shooting user experience is our all-new Roller Delayed Blowback buffer system, found in the MD:9 Carbine.
Firearm Features
M-Rax and M-Slot compatible handguard
ALG Combat trigger
Radian charging handle and selector
Ambidextrous magazine release
Fully floated barrel
15.25" Handguard
Firearm Specifications
Manufacturer: Maxim Defense
Model: MXM-51483
Caliber: 9mm
- UPC: 680017514839
- MPN: MXM-51483
- Model: Maxim Defense MD9 Carbine
7 months ago
$959.99
This rifle is equipped with an A2 flash hider which helps to minimize muzzle flash, enhancing shooter concealment and preserving night vision in low-light conditions. The handguard is compatible with M-Rax and M-Slot systems, offering flexibility for accessory attachments and customization.
Built with military-grade materials, the MD15 is durable and reliable for various conditions and uses. The ALG combat trigger provides a smooth and consistent pull, contributing to the rifle's overall accuracy.
Maxim Defense Industries MD15 Specifications
Manufacturer: Maxim Defense Industries
- UPC: 680017497378
- MPN: MXM-49737
- Model: Maxim Defense MD15L
8 months ago
The Maxim Defense SCW PDW AR-15 Pistol Brace is built for comfort and durability for real-world use. No buttons to push, just pull the brace to deploy. At its most collapsed position, this SCW brace only adds 4.0" to your AR15. At full extension, the Maxim SCW brace reaches 8.75 inches. With 5 total positions, you can adjust for maximum comfort. Built with rapid deployment, purpose-driven materials, and the functionality you need, the Maxim Defense SCW brace is simply the shortest, most thought out, versatile, and durable SCW brace on the market.
Features
- UPC: 680017476632
- MPN: MXM-47663
10 months ago
Born from the SOCOM PDW solicitation, the Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. It dominates close quarter encounters and achieves maximum energy on target. At just 18.75″ in overall length, the PDX delivers groundbreaking power and performance in a sub compact platform. At the heart is a patent-pending, Maxim SCW stock system. This system cuts down the length of the stock to 4″. The integrated BCG with interchangeable buffer weights gives you maximum performance and versatility without sacrificing form and functionality.
- UPC: 680017478223
- MPN: MXM47822
- Model: Maxim Defense PDX
10 months ago
$1,450.99
The MD:9 Carbine excels at quick-pointing and soft-shooting. Perfect for a fun family day at the range but built to handle extreme conditions. Adding to the incredibly soft-shooting user experience is our all-new Roller Delayed Blowback buffer system, found in the MD:9 Carbine.
Firearm Features
M-Rax and M-Slot compatible handguard
ALG Combat trigger
Radian charging handle and selector
Ambidextrous magazine release
Fully floated barrel
15.25" Handguard
Firearm Specifications
Manufacturer: Maxim Defense
Model: MXM-51483
Caliber: 9mm
- UPC: 680017514839
- MPN: MXM-51483
- Model: Maxim Defense MD9 Carbine
10 months ago
Born from the SOCOM PDW solicitation, the Maxim Defense PDX is designed to handle the fierce demands of the Tier 1 community. It dominates close quarter encounters and achieves maximum energy on target. At just 18.75" in overall length, the PDX delivers groundbreaking power and performance in a sub compact platform. At the heart is a patent-pending, Maxim SCW stock system. This system cuts down the length of the stock to 4". The integrated BCG with interchangeable buffer weights gives you maximum performance and versatility without sacrificing form and functionality.
- UPC: 680017478025
- MPN: MXM47802
- Model: Maxim Defense PDX
11 months ago
The Maxim Defense MD:9 Series is built to bring cutting-edge performance and modern design to the AR-9 platform. Engineered for both military and commercial use, every MD:9 upper delivers superior handling, premium components, and dependable 9mm firepower. The entire lineup features free-floating barrels, custom M-RAX/M-SLOT compatible handguards, and monolithic-style upper profiles for improved accuracy, durability, and adaptability.
- UPC: 680017481780
- MPN: MXM-48178
11 months ago
Finally, a CQB stock built for comfort and durability for real-world use. No buttons to push, just pull the stock to deploy. At its most collapsed position, this CQB stock only adds 5.35” to your AR15. At full extension, the Maxim CQB stock is the length of an extended carbine stock. And with 4 total positions you can adjust for maximum comfort and multiple scenarios. Rapid deployment, purpose driven materials, and the functionality you need, the Maxim Defense CQB Stock is simply the most thought out, versatile, and durable CQB stock on the market.
- UPC: 685239761108
- MPN: 8523976110
11 months ago
When you’re looking for Maxim Defense ingenuity in a standard AR-15 package, the MD-15 is your answer. The MD-15 was engineered to fit the growing demand for reliable, accurate, and affordable AR15-style rifles for today’s Law Enforcement Patrol Officers.
For increased comfort and versatility, every MD-15 features our free-floating Slimline handguard. These handguards provide a monolithic-like upper receiver platform and M-Slot compatibility.
FEATURES
A2 flash hider.
M-Rax and M-Slot compatible handguard.
Military-grade materials.
Radian charging handle
Magpul stock.
- UPC: 680017497354
- MPN: MXM-49735
- Model: Maxim Defense MD15L
12 months ago
The Maxim Defense MDX508 upper receiver is now available as a direct upgrade to your existing Mil-Spec lower receiver. It features an 8.5" barrel making it ideal for close-quarters situations. The included HATEBRAKE increases reliability and is tucked under the 9.5" 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.
Features
Increased reliability due to included HATEBRAKE
Armorer level adjustable gas block
- UPC: 680017479091
- MPN: MXM-47909
