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XHP556FH3P Griffin Armament 5.56MM M4SD 3 Prong Flash Hider

Manufacturer: Griffin Armament
Manufacturer part number: XHP556FH3P
UPC: 791154085318
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Griffin Armament 5.56MM M4SD 3 Prong Flash Hider (XHP556FH3P) provides M4SD sound suppressor end users a high-performance flash suppressor/compensator alternative to compatible A1/A2 Birdcage flash suppressors. The M4SD flash suppressor provides optimal suppressor fit, enhanced flash signature reduction, and reduces muzzle climb. The focus of the Gen 3 revision was to reduce flash as much as possible. Time-intensive R&D resulted in a high-performance 3 prong flash hider with incredible resonance reduction. These hide flash extremely well and do not ring or ping when fired.CNC machined and outside diameter ground from heat, corrosion, and wear-resistant, precipitation hardened, 17-4 stainless steel for maximum durability.

Compatible with the M4SD series GATE-LOK suppressor interface.

Includes shim set and over-travel stop washer. This muzzle device is pre-drilled for pinning and welding to a 14.5" barrel to achieve a 16" non-NFA length carbine.

The over-travel stop tab should be positioned at the bottom of the muzzle device (6 Oclock).


  • Ambidextrous QD Mount
  • Free of wear prone geometry
  • Precisely calculated porting to neutralize muzzle movement
  • 17-4 PH Stainless steel to withstand hard use
  • Lustrous Black Oxide 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 M4SD2, M4SDK, 30SD, and 30SDK suppressors


Weight:2.4 ounces
Materials:17-4PH Stainless Steel
Finish:Black Nitride
Attachment:1/2x28 Thread
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