Maxim Defense

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

View products:
from $1,615.50
UPC: 680017478292
MPN: MXM-47829
Caliber: 300 BLK
Finish: Black
Stock: -
from $1,841.30
UPC: 680017478230
MPN: MXM47823
Caliber: 300 BLK
Finish: Black
Stock: -
from $1,861.76
UPC: 680017478025
MPN: MXM47802
Caliber: 223/5.56
from $1,861.76
UPC: 680017478223
MPN: MXM47822
Caliber: 300 BLK
Finish: Flat Dark Earth
Stock: -
from $1,877.99
UPC: 680017478032
MPN: MXM47803
Caliber: 223/5.56
from $1,884.40
UPC: 680017508418
MPN: MXM-50841
Caliber: 223/5.56
Finish: Anodized
from $1,926.91
UPC: 680017508012
MPN: MXM-50801
Caliber: 7.62x39mm
Finish: Anodized
from $1,926.91
UPC: 680017508036
MPN: MXM-50803
Caliber: 223/5.56
Finish: Anodized
from $1,926.91
UPC: 680017508401
MPN: MXM-50840
Caliber: 7.62x39mm
Finish: Anodized
from $2,245.99
UPC: 680017478018
MPN: MXM47801
Caliber: 7.62x39mm
See more "Maxim Defense PDX" products
Maxim Defense PDX-SD
Maxim Defense PDX-SD
UPC: 680017497019
MPN: MXM49701
Caliber: 223/5.56
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
Stock: Magpul Stock/Grip
from $1,218.99
UPC: 680017514846
MPN: MXM-WDI-24
Caliber: 223/5.56
Finish: Nitride / Type III Anodizing, Sniper Grey
from $1,243.48
UPC: 680017497378
MPN: MXM-49737
Caliber: 223/5.56
Finish: Anodized, Black
Stock: Magpul Stock/Grip
from $1,449.99
UPC: 680017497361
MPN: MXM-49736
Caliber: 223/5.56
Finish: Bazooka Green
from $1,469.99
UPC: 680017497347
MPN: MXM-49734
Caliber: 223/5.56
Finish: Anodized, Gray
Stock: Magpul Stock/Grip
from $1,449.99
UPC: 680017514815
MPN: MXM-51481
Caliber: 223/5.56
Finish: FDE
from $1,463.11
UPC: 680017490508
MPN: MXM-49050
Caliber: 6mm ARC
Finish: Black Cerakote colored finish over Type III hard coat anodize
Stock: Collapsible Magpul MOE PR Carbine Stock
from $1,463.11
UPC: 680017490515
MPN: MXM-49051
Caliber: 6mm ARC
Finish: Sniper Grey Cerakote colored finish over Type III hard coat ano
Stock: Collapsible Magpul MOE PR Carbine Stock
from $1,463.11
UPC: 680017490522
MPN: MXM-49052
Caliber: 6mm ARC
Finish: FDE
Stock: Collapsible Magpul MOE PR Carbine Stock
from $1,463.11
UPC: 680017490539
MPN: MXM-49053
Caliber: 6mm ARC
Finish: Sniper Grey Cerakote colored finish over Type III hard coat ano
Stock: Collapsible Magpul MOE PR Carbine Stock

Maxim Defense MD10L

View products:
from $1,540.76
UPC: 680017496838
MPN: MXM49683
Caliber: 308 Win
from $1,540.76
UPC: 680017496890
MPN: MXM49689
Caliber: 6.5 Creedmoor
Finish: Sniper Grey
from $1,540.76
UPC: 680017496906
MPN: MXM49690
Caliber: 6.5 Creedmoor
Finish: FDE
Stock: Magpul SL-K
from $1,553.99
UPC: 680017496821
MPN: MXM49682
Caliber: 308 Win
Finish: Sniper Gray Cerakote
Stock: Magpul SL-K
from $1,628.32
UPC: 680017496852
MPN: MXM49685
Caliber: 308 Win
from $1,520.41
UPC: 680017496845
MPN: MXM49684
Caliber: 308 Win
Finish: Bazooka Green

Maxim Defense MD9 Carbine

View products:
from $1,550.00
UPC: 680017514839
MPN: MXM-51483
Caliber: 9mm
Finish: Arid Finish
Stock: B5 Systems Telescoping Stock
from $1,699.99
UPC: 680017482039
MPN: MXM-48203
Caliber: 9mm
Finish: Arid
Stock: B5 Stock
from $1,799.99
UPC: 680017482022
MPN: MXM-48202
Caliber: 9mm
Finish: Black Cerakote
Stock: B5 Bravo
from $1,949.99
UPC: 680017482046
MPN: MXM-48204
Caliber: 10 Gauge
Finish: Urban Gray
Stock: B5 Systems Collapsible

Maxim Defense SDX RFLX

View products:
from $2,876.99
UPC: 680017492151
MPN: MXM-49215
Caliber: 300 BLK
Finish: Type III Hard Coat Anodized
Stock: Gen:6 CQB Brace, Polymer Grips
from $2,876.99
UPC: 680017492168
MPN: MXM49216
Caliber: 300 BLK
Finish: Black, Type III Hard Coat Anodize
Stock: Maxim Defense Gen:6 CQB Pistol Brace, Polymer Grips
from $2,899.99
UPC: 680017492182
MPN: MXM-49218
Caliber: 300 BLK
Finish: Type III Hard Coat Anodized
Stock: Gen 7 CQB Stock (Arid)
from $3,015.86
UPC: 680017492229
MPN: MXM-49222
Caliber: 300 BLK
Finish: Black Cerakote Finish
Stock: Magpul CTR Stock, Polymer Grip

Maxim Defense MDX

View products:
from $1,802.52
UPC: 680017479992
MPN: MXM-48003
Caliber: 7.62x39mm
from $1,903.61
UPC: 680017481186
MPN: MXM-48118
Caliber: 223/5.56
Stock: Maxim SCW
from $1,903.61
UPC: 680017479626
MPN: MXM-47962
Caliber: 223/5.56
Stock: Maxim SCW
from $1,903.61
UPC: 680017480025
MPN: MXM-48002
Caliber: 7.62x39mm
Stock: Maxim SCW
from $1,903.61
UPC: 680017480032
MPN: MXM-48003
Caliber: 7.62x39mm
Stock: Maxim SCW
from $2,090.20
UPC: 680017479435
MPN: MXM-47943
Caliber: 7.62x39mm
from $2,090.20
UPC: 680017481193
Caliber: 300 BLK
Finish: Urban Grey
from $2,182.04
UPC: 680017479855
MPN: MXM-47985
Caliber: 300 BLK

Other models

from $1,045.93
UPC: 680017480189
MPN: MXM-48018
Caliber: 22 LR
Capacity: 10+1
Barrel Length: 5.9"
from $1,347.57
UPC: 680017483524
MPN: MXM-48352
Caliber: 22 LR
Capacity: 10 rounds
Barrel Length: 5.9"
from $1,599.99
UPC: 680017481629
MPN: MXM48162
Caliber: 9mm
Capacity: 27Rd
Barrel Length: 5.80"
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 $1,695.22
UPC: 680017481605
MPN: MX9905CS
Caliber: 9mm
Capacity: 27Rd
Barrel Length: 5.80"
from $1,795.99
UPC: 680017481728
MPN: MXM48172
Caliber: 9mm
Capacity: -
Barrel Length: 5.50"
from $1,975.50
UPC: 680017481612
MPN: MXM-48161
Caliber: 9mm
Capacity: 27
Barrel Length: 5.80"
from $2,150.99
UPC: 680017479237
Caliber: 300 BLK
Capacity: 20Rd
Barrel Length: 8.75"
from $2,150.99
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"

Other products

from $293.44
UPC: 680017475444
MPN: MXM47544
Seriescollection: CQB PDW
Material: 7075 Aluminum Alloy
Color: Black
from $314.96
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 $844.00
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

Filter

2 days ago
The PDX dominates close-quarter encounters and achieves maximum energy on target. The PDX delivers groundbreaking power and performance in a subcompact platform. ALG Combat Trigger Maxim Defense Hatebrake SCW Stock System – Model:PDX – Action:Semi-automatic – Type:SBR – Caliber:.300 Blackout – Barrel Length:5.5" – Color:Flat Dark Earth – Grips:Polymer – Capacity:20Rd – Finish:Matte – Stock:Maxim SCW – ALG Combat Trigger – Maxim Defense Hatebrake – SCW Stock System
0
3 days ago
The Maxim Defense SDX RFLX SBR, .300 BLK, 8.5" Barrel, M-Kore Over-the-Barrel Reflex Suppressor is a cutting-edge firearm designed for those who demand excellence. This integrally suppressed weapon system is built around the battle-proven SDX platform, featuring an 8.5" barrel with a proprietary suppressor that maximizes sound reduction while maintaining a compact profile.
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1 week ago
Designed for real-world use, the Maxim Defense CQB Gen 6 Pistol Brace for AR-15 offers both comfort and durability. When fully collapsed, this brace adds minimal length to any AR-15 pistol. The CQB Gen 6 offers four adjustable positions, making it versatile and suitable for a wide range of shooting needs. The CQB Gen 6 deploys swiftly and intuitively without any cumbersome buttons to push. Made from tough materials, this brace features a 3.3 oz buffer and is one of the toughest and most adaptable CQB braces for the AR-15. Features: - Adjustable pistol brace for AR-15
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3 weeks ago
What's in the Box* Maxim Defense MD:15 Duty Precision 5.56 NATO Semi-Auto Rifle* (1) 20-Round Magazine* Vortex Venom 3-15x44mm Scope* Vortex Cantilever Mount* Magpul Bipod* Savior Range Bag* Cable Lock* Owner's ManualThe Maxim Defense MD:15 Duty Precision is engineered for shooters who demand repeatable accuracy, stability, and confident performance at distance.
0
3 weeks ago
What's in the Box* Maxim Defense MDX:508 300 Blackout Semi-Auto Pistol* Cable Lock* Owner's ManualThe PDX redefined compact firepower in size, durability, and accuracy. With the same heart and soul of the proven PDX, the 508 features an 8.5” barrel, ideal for when maximum concealment and compactness are essential but not as crucial.The 8.5” barrel delivers higher velocities while the CQB system plays a key role in the compact size. The CQB brace adds a mere 5.375” to the end of the receiver with a full extension of 10”, providing complete comfort to the operator.
0
1 month ago
When you’re looking for Maxim Defense ingenuity in a new standard AR-9, the MD-9 is your answer. The MD-9 was engineered to fit the growing demand for cutting-edge AR9-style rifles for today’s Military and commercial market. Every MDX features Maxim Defense's free-floating barrel with their custom handguard for increased comfort and versatility. These handguards provide a monolithic-like upper receiver platform and M-Slot compatibility. Product Features: Receives all Glock 9mm pattern magazines, G19 and longer. MIL-SPEC+ coatings and materials.
1
1 month ago
Maxim Defense Industries PDX-SD, Semi-automatic Rifle, SBR, 300 Blackout, 5.5" Threaded Barrel, Cerakote Finish, Olive Drab Green, 30 Rounds, 1 Magazine, Includes DSX Suppressor MXM-49101 Manufacturer Maxim Defense Model PDX-SD UPC 680017491017 SKU MXM-49101 Width 10.2500 Length 35.2500 Height 4.0000 Weight 10.6900 Capacity 30 Action Semi-Automatic Barrel Length 5.5" Caliber/Gauge .300 AAC Blackout (7.62x35mm) Grip Type Polymer Type SBR
0
Guns2U 1004
1 month ago
PRODUCT DETAILS FEATURES: FEATURES State-of-the-art MonoKore design. Simple 3-piece design. Military-grade materials. Adds 7.25” to the muzzle. Specifically designed for .30 cal The suppressor core has integrated carbon cutters for tube cleaning Limited rate of fire: 20 rounds at 1 round per second then allow to cool to ambient temperature. Technical Specification Available Calibers : .30 cal Material Composition : 7075 aluminum, Grade-5 Titanium thread insert Weight : 10.8 oz Length : 7.9” overall length Diameter : 1.75” outer diameter Finish :
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1 month ago
The PRS-338 Suppressor is engineered for shooters who demand an exceptional strength-to-weight ratio without compromising sound suppression. Designed around advanced M-Kore Technology, the PRS delivers impressive acoustic performance in an ultra-lightweight package, making it an excellent choice for hunting, precision rifle competition, and select semi-automatic platforms. Its minimal muzzle weight is immediately noticeable in the field and on the clock, while durable materials ensure reliable performance for light- to mid-duty use—all at a highly accessible price point. FEATURES:
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KyGunCo 47
1 month ago
Built around a robust blowback operating system, the MD9 excels in smooth cycling and rugged performance. The M-Lok handguard allows for custom attachment of optics, lights, and grips, while the threaded barrel supports muzzle device or suppressor compatibility right out of the box. Its included B5 Bravo stock offers excellent ergonomics, enhanced cheek weld, and adjustability for a tailored fit. This rifle’s precise machining, Cerakote finish, and quality internal parts deliver a reliable shooting platform with minimal recoil and maximum control. Maxim Defense MD9 Specifications
0
1 month ago
Expired Maxim Defense PDX 5.56mm AR-15 Pistol with Urban Grey Finish - $1833.79 (Add To Cart) (Free S/H on Firearms)
Born from the SOCOM PDW solicitation, the 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.
0
2 months ago
The PDX Pistol in 5.56 NATO Urban Grey is a compact and reliable tactical firearm designed for precision and performance. Ideal for tactical operations, this pistol offers superior handling and accuracy. Its urban grey finish provides a sleek, modern look, while the robust construction ensures durability in various conditions. – UPC 680017480677 – Manufacturer Maxim Defense Industries – Manufacturer Part Number MXM-48067 – Product Type AR – Safety Manual Safety – Model PDX – Color Gray – Capacity 20 – Caliber/Gauge .223 REM/5.56 NATO – Barrel Length 5.5" – Action Semi-Auto
0
2 months ago
The Maxim Defense DSX Suppressor is the benchmark of extreme duty use silencers. In addition, the DSX has been recognized by Pew Science for its performance, earning top honors in firearm sound suppression. The DSX’s core is an asymmetrical monolithic steel construction, a “monocore.” Monocore silencer design is a mature technology in the modern silencer market, known for its simplicity and alignment advantages. The DSX is designed for duty use and a lifetime of ownership. It’s user-serviceable and can be disassembled with common tools for occasional maintenance. Features:
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KyGunCo 60
2 months ago
Item Number: 254992 MPN#: 48052 MXM-48052 The DS Series is closely related to the DSX, offering toughness, extreme quietness, and an unmatched shooting experience thanks to M-Kore Technology. Ideal for use with barrels 10.3” and longer, the DS Series can withstand any punishment. Rated for full-auto shooting, it’s built to handle the heat. The main differences from the DSX are the absence of the secondary tube retention ring and the use of Grade 9 titanium instead of the more expensive Grade 5. Why pay extra for Grade 5 when Grade 9 delivers outstanding performance?
0
KyGunCo 113
2 months ago
Item Number: 255016 MPN#: 48366 MXM-48366 The Maxim Defense DSX Suppressor is the benchmark of extreme duty use silencers. In addition, the DSX has been recognized by Pew Science for its performance, earning top honors in firearm sound suppression. The DSX’s core is an asymmetrical monolithic steel construction, a “monocore.” Monocore silencer design is a mature technology in the modern silencer market, known for its simplicity and alignment advantages.
0
KyGunCo 259
2 months ago
Tame an over-gassed or suppressed AR-15 with the right amount of buffer mass. The Maxim Defense SCW H2 Buffer and Spring provides 4.65 oz. of weight to slow bolt carrier velocity on builds that run hard, reducing wear on components and delivering a noticeably flatter shooting experience. The Maxim Defense SCW H2 Buffer and Spring is a 4.65 oz. heavy buffer and spring assembly designed to enhance Maxim Defense SCW stock and pistol brace systems on the AR-15 platform.
0
2 months ago
Out of stock Maxim Defense PDX 300BLK 5.5" 20RD BLK - $1960
Maxim Defense Industries PDX Pistol, Semi-automatic, 300 Blackout, 5.5" Barrel, Aluminum Frame, Hate Brake, Black Finish, SCW PDW Brace, 20Rd MXM-47823 Manufacturer Maxim Pricing Unit GN Model PDX UPC 680017478230 SKU MXM47823 Width 12.5000 Length 22.0000 Height 4.5000 Weight 8.5600 Accessories Hate Brake Action Semi-Auto Barrel Finish Black Barrel Length 5.50" Caliber/Gauge .300 AAC Blackout (7.62x35mm) Capacity 20+1 Finish/color Black Frame Material Aluminum Grip Type SCW PDW Brace Grips Black Polymer Hand Right Muzzle Maxim Hate Brake Oal 18.75"
0
2 months ago
When you’re looking for Maxim Defense ingenuity in a new standard AR-9, the MD-9 is your answer. The MD-9 was engineered to fit the growing demand for cutting-edge AR9-style rifles for today’s Military and commercial market. Every MDX features Maxim Defense's free-floating barrel with their custom handguard for increased comfort and versatility. These handguards provide a monolithic-like upper receiver platform and M-Slot compatibility. Product Features Receives all Glock 9mm pattern magazines, G19 and longer. MIL-SPEC+ coatings and materials. Fully and easily serviceable.
0
2 months ago
Born from the SOCOM PDW solicitation, the 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.
0
2 months ago
Out of stock Maxim Defense Ruger MKIV-SD Integrally Suppressed .22 LR 5.9" Barrel 10 Rnds Blued *Class 3 Product* - $1341.04 (Add to Cart for Best Price)
Maxim Defense Industries RUGER MKIV-SD Integrally Suppressed, Single Action, Semi-automatic, Metal Frame Pistol, Full Size, 22LR, 5.9" Barrel, Alloy, Blued Finish, Checkered Grips, Leupold Delta Point Pro, 10 Rounds MXM-48352 The MKIV-SD is constructed as an integral suppressor on the Ruger MK-IV .22LR pistol. Utilizing a 7 inch long by 1 inch diameter suppressor tube, the appearance is that of a target bull barrel. It is constructed of 4130 steel tube. The baffle system are aluminum for increased efficiency. No packing materials are used in these units.
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