AAC Blackout 51T 5.56mm 1/2″-28 Thread

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$149.99 $129.99

In stock


AAC Blackout 51T 5.56mm 1/2″-28 Thread

This AAC Blackout AR-15 Flash Hider is an extremely efficient design that effectively eliminates muzzle flash, even on short barrels. The open-end, 3-prong design of the Blackout is inherently stronger than 4-prong units, and is not subject to the wear and erosion commonly encountered with closed-end designs. All Blackout flash suppressors are machined from high strength aerospace steel alloy and coated in a hard, durable, corrosion resistant SCARmor finish.

This 51T Blackout flash hider works in conjunction with AAC’s improved ratchet mount sound suppressors. The 51-T mount is an intuitive, lightning fast silencer attachment/detachment system that allows for secure installation of a suppressor in less than 3 seconds with no tools or moving parts. Not compatible with the older spring mount (18-Tooth) or newer ratchet taper mount (90-Tooth) sound suppressors.


  • Caliber: 22 Cal/5.56mm
  • Thread Pitch: 1/2″-28
  • Common Firearm Use: AR-15, Bushmaster ACR
  • Length: 2.5″
  • Length Added to Barrel: 1.875″
  • Weight: 4.3 oz
  • Finish: SCARmor
  • Silencer Mount: 51T Ratchet Mount


Additional information

Weight 0.5 kg

Advanced Armament


5.56/223, 556Nato, 223Rem


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