Griffin Armament M4SD

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Availability: Out of stock

MSRP: $700.00 Our Price: $545.00 Save 22%

* This item qualifies for Easy Pay Help

Initial down payment of $200.00.
4 payments of $109.41 to be paid over the next 4 months (1 payment due each month) to pay the remaining balance.
Total to be paid = $637.65
* Final total varies depending on tax, shipping, and BATFE transfer fees that may apply to the order.
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Quick Overview


Purchases from November 16th to December 31st on Griffin Armament 5.56 suppressors are eligible for an additional free muzzle device from Griffin Armament.  For promo registration and details, click here

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.

Caliber .223, 5.56mm
Weight 17.1000
Length 6.6"
Diameter 1.5"
Decibel Reduction / Output 32 dB Reduction
Full Auto Rated Yes
Mount A2 / Hammer Comp
Thread Pitch What thread pitch do I have? Multiple Thread Pitchs Available
Color Black
Finish Cerakote
Materials 17-4PH Stainless Steel
Can Be Disassembled No
Manufacturer Griffin Armament
Warranty Lifetime
Model No
Manufacturer's Suggested Retail Price $700.00
The M4SD II sound suppressor is the result of a ten year study of sound suppressor design and rigorous seven year R&D program pulling from lessons learned in environments from computer design, field testing, to actual combat operations. The M4SD II was designed to provide the end user with an extremely durable, high performance, and versatile silencer for semi auto 5.56 carbines. The optimal combination of lightweight, peak performance, durability and flexibility was accomplished in the M4SD II. The M4SD II is CNC machined, and TIG fusion welded for maximum thermal transfer and unparalleled strength and durability. Every component in the M4SD II is manufactured from high strength, high temp, corrosion resistant 17-4ph Stainless Steel. The M4SD II has the best balance of muzzle and ejection port sound signature on the market today. (according to internal MIL-STD sound testing with current competing products in class). Unique to Griffin M4SD family suppressors is it's SDQD mounting interface. The mounting system is one of the fastest on the market and accommodates the A2 nato compensator as well as Griffin's proprietary performance rich muzzle device options. Additionally the M4SD mounting system does not suffer from the wear prone issues of ratcheting systems common to the marketplace. Our mounting system was designed to provide trouble free use. The mounts of the M4SD II sound suppressor are precision ground to ten thousandths of an inch for minimal, repeatable and completely dependable point of impact shift. Built on a mountain of development, the M4SD-II is the pinnacle of performance- the equal of the best competing products available anywhere in the world.

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