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M4SD Muzzle Brake
M4SD 5.56 Muzzle Brake 1/2x28

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MSRP: $119.95

Product Code: XHP556MB


The Griffin Armament M4SD muzzle devices interface with our M4SD / 30SD series of silencers and QD Blast Shield.

The M4SD muzzle brake provides high efficiency recoil reduction and two durable, sacrificial baffles for use inside M4SD /30SD sound suppressors. CNC Machined and outside diameter ground from high strength, corrosion and wear resistant, 17-4 precipitation hardened stainless steel. The M4SD muzzle brake is black oxide finished. 1/2×28 threads offer compatibility with most 5.56mm Ar-15/M-4 carbine family weapons.

Overall length of 2.25" will bring 14.5" barrels to the minimum legal length of 16.1" when permanently attached.

Includes shim set and over-travel stop washer.

Over-travel stop tab should be positioned at the bottom of the muzzle device (6 Oclock).
Diameter: .863″
OAL: 2.25”
Weight: 2.7 ounces
Materials: 17-4PH Stainless Steel
Finish: Black Oxide
Attachment: 1/2×28 Thread
    • Ambidextrous QD Mount
    • Free of wear prone geometry
    • Precisely calculated porting to neutralize muzzle movement
    • 2 Sacrificial baffles to extend the life of your suppressor
    • 17-4 PH Stainless steel to withstand hard use
    • Lustrous Melonite Finish
    • Griffin Laser Logo Marked
    • 1/2x28 industry standard Thread Pitch for 5.56mm carbines
    • Shim set Included
    • Over-Travel stop washer Included
    • Compatible with M4SD series and 30SD silencers

M4SD II Silencer M4SD-K Silencer
M4SD II 5.56mm Silencer M4SD-K 5.56mm Silencer

Average Rating: 5 of 5 Total Reviews: 1 Write a review »

  0 of 0 people found the following review helpful:
Excellent brake April 6, 2018
Reviewer: Peter  
I bought this brake for a 14.5 inch barrel to pin it and make a legal rifle length barrel. The fit and finish are perfect and gives the rifle a really nice look. Shooting 5.56 with this brake results in basically zero muzzle rise and very rapid follow up shots. The only downside is my friends on the firing line with me don’t care for the sidewards pressure and blast it creates, but who cares what they think anyways. Overall I’m highly pleased with the brake, and will be getting a taper mount flash comp to mount my Recce 7 suppressor that is currently sitting in NFA jail. Griffin Armament makes quality products.

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