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GDM® 556Ti Rifle Suppressor

Lightweight. Balanced. Titanium-built.

The GDM® 556Ti is the lightweight option in the GDM® 556 Series — engineered for shooters who want effective 5.56 suppression while minimizing added weight at the muzzle. Precision-manufactured from Grade 5 titanium and finished in DLC, the 556Ti delivers durability and performance without the mass of stainless steel.

Why choose the GDM® 556Ti?

  • Grade 5 titanium reduces front-end weight
  • Improved rifle balance for fast handling
  • Universal HUB interface (1.375×24)
  • DLC coating internally and externally for durability and corrosion resistance
  • Includes direct thread mount

Who the 556Ti is for:

Weight-sensitive builds | Competition rifles | Lightweight AR platforms

$934.99

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GDM® 556Ti Rifle Suppressor
$934.99
  • Made In the USA
  • NFA Compliant
  • Lifetime Defect Warranty

Compatible Accessories

NFA item. Compliance required. We assist throughout the process.

GDM® 556Ti Rifle Suppressor

The GDM® 556Ti is part of the GDM® 556 Series — a suppressor platform designed to give 5.56 shooters multiple performance options based on weight, durability, and intended use.

Manufactured entirely in-house at Guardian Defense Mfg’s family- and veteran-owned facility in Dayton, Ohio, the 556Ti is built for shooters who value balance and handling without sacrificing sound suppression or long-term reliability.

At 6.5 inches long and 11.5 ounces, the GDM® 556Ti significantly reduces added mass at the muzzle compared to stainless steel models, making it ideal for competition rifles and lightweight setups. Its HUB (1.375×24) interface ensures compatibility with a wide range of industry-standard mounting systems, allowing flexible integration into existing systems.

Independent third-party testing validates the performance of the GDM® 556 Series, providing objective data and real-world confidence.

Engineered for Durability & Performance

The GDM® 556Ti is constructed from fusion- and laser-welded 6Al-4V Grade 5 titanium, offering exceptional strength-to-weight performance while maintaining durability under typical 5.56 firing schedules. A DLC coating internally and externally enhances surface hardness and corrosion resistance, ensuring longevity in demanding environments.

The GDM® 556 Series includes multiple configurations to support different mission profiles, with the 556Ti optimized for shooters prioritizing reduced weight and improved rifle balance.

Universal HUB Mounting

The GDM® 556Ti features a 1.375×24 HUB mounting interface, providing compatibility with a wide range of popular mounting systems. This universal standard allows shooters to configure their rifles without being locked into proprietary mounts.

  • Removable using the included wrench
  • Also includes 1/2 x 28 direct thread mount (additional size available for purchase)

Manufactured In-House

Every GDM® suppressor is:

  • Designed
  • Machined
  • Welded
  • Assembled
  • Packaged

In-house in Dayton, Ohio.

All GDM® suppressors are backed by a lifetime defect warranty, ensuring long-term confidence in your investment.

Additional information

Model Name

GDM® 556Ti
Item Length

6.5 inches
Item Weight

11.5 oz
Item Diameter

1.612 inches
Material

Fusion- & Laser-Welded 6Al 4V Grade 5 Titanium
Finish

DLC
Mount Interface

1.375 x 24 HUB
Caliber Rating

5.56 NATO / .223 Wylde
Included Components

1/2 x 28 Direct Thread, Suppressor, Wrench
Shipping Restrictions

Suppressors can only be shipped to an authorized FFL/SOT registered dealer. We cannot ship to the following states: CA, DC, DE, HI, IL, MA, NJ, NY, or RI.

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Caliber Compatibility & Use Cases

Wondering if this suppressor supports your caliber or barrel length?

Use our caliber compatibility guide to confirm supported calibers, pressure considerations, and platform recommendations before shooting.

View Caliber Compatibility Guide

Compare the GDM® 556 Series

Choose the 5.56 suppressor that best matches your build, priorities, and shooting style.

FeatureGDM® 556KGDM® 556GDM® 556Ti
Length5.75"6.5"6.5"
Weight16.6 oz18.5 oz11.5 oz
Material17-4 Stainless Steel17-4 Stainless Steel & 718 InconelGrade 5 Titanium
FinishDLCDLCDLC
Durability FocusMaximumMaximumLightweight Performance
Mount InterfaceHUB (1.375×24)HUB (1.375×24)HUB (1.375×24)
Caliber Rating5.56 NATO / .223 Wylde5.56 NATO / .223 Wylde5.56 NATO / .223 Wylde
Supported PlatformsAR-15 • 5.56 carbines • SBRs • bolt-action 5.56 platformsAR-15 • 5.56 carbines • SBRs • bolt-action 5.56 platformsAR-15 • 5.56 carbines • SBRs • bolt-action 5.56 platforms
Ideal UseSBRs / Hard useDuty / General purposeCompetition / Lightweight builds
Balance PriorityCompactnessSuppression & durabilityWeight reduction
1/2 x 28 Direct Thread✓✓✓
Made In-House (USA)✓✓✓
Lifetime Defect Warranty✓✓✓

Which GDM® 5.56 Cal Suppressor Is Right for You?

Choose based on size, balance, and suppression priority.

GDM® 556K

Choose this if you want:

  • The shortest overall length
  • A suppressor optimized for SBRs
  • Maximum durability in a compact form

Best for:

SBRs • Hard-use rifles • Compact builds

View 556K

GDM® 556

Choose this if you want:

  • A full-size 5.56 suppressor
  • Balanced sound suppression & durability
  • A general-purpose duty option

Best for:

Duty rifles • General-purpose ARs • All-around use

View 556

GDM® 556Ti

Choose this if you want:

  • The lightest 5.56 option
  • Improved rifle balance
  • Reduced front-end weight

Best for:

Competition rifles • Lightweight builds • Balance-sensitive setups

View 556Ti

All GDM® suppressors are precision-manufactured in-house in the USA and backed by a lifetime defect warranty.

Need help choosing? Our team is happy to assist before or after purchase.

Suppressors are regulated items and must be transferred through an authorized Class 3 FFL / SOT dealer.

  • Suppressors cannot be shipped to a personal residence
  • Enter your selected FFL / SOT dealer’s address at checkout
  • Orders may be canceled if a residential address is entered

We do not ship suppressors to: CA, DC, DE, HI, IL, MA, NJ, NY, RI

Always verify caliber compatibility, barrel length requirements, and firing schedule limits before use. Improper use may result in damage, injury, or voided warranty.

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