Maxim Defense Industries - High-Performance Firearms & Accessories

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RUGER® MARK IV™

 

The Maxim Defense MKIV-SD isn’t just another suppressed Ruger® Mark IV™—it’s a leap forward in suppressed firearm technology. Powered by M-Kore™ Technology, this platform delivers unmatched precision, quiet operation, and reliability. Inspired by the iconic MP5SD, the MKIV-SD features a diffuser and ported barrel that bleed gas to reduce supersonic rounds to subsonic speeds, making it one of the quietest and most versatile suppressor systems available.

Its innovative 3-piece design includes integrated carbon cutters for effortless maintenance, while the user-serviceable suppressor ensures long-term durability and convenience. Built for seamless performance, the MKIV-SD eliminates detectable first-round pop and is available in three configurations: without an optic, or equipped with the Leupold DeltaPoint Pro® or Vortex Defender-ST™ red dot optics. Each option enhances the shooting experience, ensuring maximum performance for tactical professionals and enthusiasts alike.

 

 

Calibers :
.22LR
Mount :
N/A - Integral
Outer Diameter :
1.0" (Suppressor)
Material Composition :
7076-T6 aluminum, 4140 stainless steel
Weight:
6.3 oz
Length :
12.6" overall
Finish :
Cerakote®, Type III hard coat anodizing

AVAILABLE OPTICS

Features Leupold DeltaPoint Pro® Vortex Defender-ST™
Magnification:
1x
1x
Dot Size:
2.5 MOA
3 MOA
Battery Life:
Up to 1,600 hours
Up to 9,500 hours
Material:
Aircraft-grade aluminum
Aluminum housing
Weight:
1.9 oz
0.95 oz
Waterproof:
Yes, waterproof and fog-proof
Waterproof
Mounting:
Glock MOS, Picatinny
Glock MOS, Picatinny

Owners Manual

Spec Sheet

Made In The USA

At Maxim Defense, we take pride in designing and manufacturing high-performance firearms, suppressors and accessories that deliver exceptional reliability and durability. Your feedback and positive reviews are important to us, as they help us continually improve our products. If you experience any issues with your Maxim Defense products, please contact us at info@maximdefense.com, and we’ll work with you to resolve the matter as quickly as possible. Please note that we do not cover damage caused by the installation of other manufacturers’ products.

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Weight 4 lbs
Dimensions 12 × 5 × 3 in
Configuration

DeltaPoint® Pro, No Optic, Vortex Defender-ST™

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