M4SD Silencer (5.56mm)


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The M4SD suppressor is back- providing the original project goals- an affordable, sound suppressor with support for compatible A2 compensators. Taking the lessons learned from the M4SD II flagship development program, we simplified and produced a more economical suppressor and are passing on the savings to the customer. The M4SD retains the welded, 17-4 billet construction and is as durable as the flagship suppressor. Full auto rated, equipped with a user friendly snap on interface, backed by an extensive muzzle device family- the M4SD suppressor is a great suppressor for the entry level NFA enthusiast desiring a QD interface.

The M4SD mounting system does not suffer from the wear prone issues of ratcheting systems common to the marketplace.
Our SDQD mounting system was designed to provide trouble free use.

Rated on Following barrel lengths : No barrel restrictions! While longer barrels promote longer service life, this suppressor has no length restrictions!

The M4SD Does not include a mount

Diameter: 1.5"
Overall Length: 6.6"
Weight: 17.1 ounces
Materials: High Strength, High Temp, Corrosion Resistant 17-4PH Stainless Steel
Attachment: Griffin M4SD Mounts and USGI A2 spec compensators*
Finish: Griffin Endura-Kote
Attenuation: 32DB

*Silencer interface was designed to fit the USGI A2 government contract compliant muzzle devices. We cannot guarantee fitment with an A2 style compensator due to the broad tolerance range of both import and domestic devices from various brands. For guaranteed fitment, we recommend the purchase a Griffin mount.

  • TIG Fusion Welded
  • Minimal back pressure design
  • Extremely versatile and fast mounting system
  • High strength, high temp, corrosion resistant 17-4ph Stainless steel
  • Full Auto rated on 10.5" barrels and longer
  • Silencer Pouch Included
  • M4SD Shims and over-travel stop Included
  • Compatible with Griffin M4SD muzzle device family or A2 Nato Spec Compensators
5.56mm (.223)
Attachment System:
User Serviceable?: