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GAM4SD2-W Griffin Armament M4SD-II 5.56MM Suppressor Full Size w/ QD Mount

Manufacturer: Griffin Armament
Manufacturer part number: GAM4SD2-W
UPC: 791154080955
Out of Stock - backorder and will be shipped once in stock.
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The heart of the M4SD II suppressor is a billet machined "chassis" (tube body), with integrated muzzle device bearing surfaces, which houses the internal components. The "chassis" provides housing substantially stronger than the strongest tube materials currently available. Through extensive, costly and time-intensive machining of the "chassis", a tube structure of superior geometry is derived. The chassis is encompassed by a series of flutes surrounded by supporting structures affording enhanced strength to weight ratio- coupled with a 40% increase of surface area for unparalleled cooling. The M4SD II has surface area comparable to 7.62mm suppressors on the market. Reducing the internal operating temperature of the suppressor yields a superior product with a level of durability beyond that of current market options. The monolithic structure of the blast chamber and tube maximizes safety factor and provides maximum theoretical temperature transfer, allowing heat to normalize, mitigating the effects of erosion to baffle surfaces. Integrated at the request of elite tactical units, the included flash suppressor front cap further reduces flash signature in pursuit of suppressed superiority.

The M4SD II offers users a wide range of mounting options using Griffin's variety of M4SD mounts and compatible A2 compensators.

Unique to Griffin M4SD family suppressors is it's SDQD mounting interface. The SDQD mounting system is one of the fastest on the market and accommodates the A2 nato compensator as well as Griffin's M4SD II series proprietary performance rich muzzle device options.


  • Tig Fusion Welded
  • Flawless Bore Technology
  • Industry-leading sound performance
  • Minimal back pressure design
  • Extremely versatile and fast mounting system
  • High strength, high temp, corrosion-resistant alloys
  • Full Auto rated on 10.5" barrels and longer
  • M4SD Hammer Comp Mount Included
  • Silencer Pouch Included
  • M4SD Shims and over-travel stop Included
  • Compatible with M4SD or A2 Nato Spec Compensators
  • High Temp Griffin Endura-Kote finish


Overall Length:6.6"
Weight:17.5 ounces
Materials:High Strength, High Temp, Corrosion Resistant 17-4PH Stainless Steel
Attachment:Griffin M4SD Mounts and USGI A2 spec compensators*
Finish:High Temp Griffin Endura-Kote
DB Attenuation:35DB
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