Griffin Armament Announces M4SD-L 5.56mm Suppressor
Griffin Armament’s new M4SD-L (LIGHTWEIGHT) sound suppressor is the first tubeless laser welded suppressor introduced to Griffin’s versatile Gate-LOK™ lineup. This design makes the M4SD-L lighter than other Gate-LOK™ suppressors. They combine ECO-FLOW™ baffles, Gate-LOK™ mounting system, and Pressure Reduction Cap resulting in a lightweight, durable, and performance-rich next-generation suppressor.
The M4SD-L features Griffin’s Gate-LOK™ mounting system, which allows for rapid installation and removal with the ability to be mounted to most USGI-spec A2 NATO compensators and all Griffin proprietary Gate-LOK™ muzzle device options. The GATE-LOK™ system is faster and easier to use than standard A2 interfaces and ensures a strong, concentrically aligned mount with minimal POI shift and exceptional repeatability.
Each baffle in the M4SD-L has been tuned to provide superior sound reduction and incorporates Griffin’s patented ECO-FLOW™ technology that reduces back pressure and increases flow. This makes the suppressor host firearm operating system more reliable and largely unaffected by the suppressor and provides cleaner breathing air to the operator’s face. Unlike a classic stack design, each baffle has been individually tuned and engineered for a specific purpose. With the M4SD- L, each baffle has an independent function to improve performance.
The patent pending Pressure Reduction Cap features high-performance internal and external flash-reducing features and optimally tuned gas vents that enhance flash reduction even further and improve sound performance in conjunction with the ECO-FLOW™ baffles.
When asked about the suppressor, Austin, head of Griffin Armament product development said,
“We manufactured the M4SD-L for demonstration to the military and provided many units to the military for as yet ongoing T&E. This GATE-LOK™ model was intended for experienced end users seeking greater optimization for actual world conditions. This suppressor is now available for the consumer and export markets.
The M4SD-L combines a wide range of innovative Griffin engineering developments to bring an incredibly well-rounded suppressor to market. The M4SD-L also shows our current customers our continued commitment to the Gate-LOK™ suppressor lineup and to its development and optimization.”
Key Points
- Laser-welded, tubeless design
- Rapid and versatile GATE-LOK™ mounting system
- Compatible with GATE-LOK™ or most USGI-A2 Spec Compensators
- 17–4 H900 heat-treated stainless steel
- Patent–pending flash reducing, and flow optimized end cap
- Patented ECO-FLOW™ baffle system for improved performance and shooting experience
- GATE-LOK™ Hammer Comp 1/2×28 56mm (.22 cal) muzzle device included
- ¾” wrench flats on muzzle devices
- Suppressor body design patented, H900 heat treated and Hi-temp Cerakoted
- Protected BY Griffin’s Perpetual Lifetime Warranty™
Key Features: Griffin Armament M4SD-L 5.56mm Suppressor
- Dimensions: 5” x 6.5”
- Weight: 14.5oz
- Sound Pressure Level at shooter’s ear : (136.1DB) 5″ Griffin MK1, (133.1DB) 16” Griffin MK1
- MSRP: $995.00
Jeremy Mallette is co-founder of International Sportsman. An avid hunter and outdoorsman, he has spent more than a decade in the outdoor industry, from hiking and camping to silencers and hunting. His father taught him to shoot at age six, and he received his first firearm at age eight — a 1942 Colt Commando .38 special revolver. He enjoys yearly trips to Kansas for pheasant hunting, spending time with his children at the deer lease, and collecting unique firearms.