DUAL-LOK® HRT-556™ (.22 cal) Suppressor

Initially designed for elite HRT unit’s, Griffin Armament’s HRT-556™ model is the shortest addition to the DUAL-LOK® family of suppressors. Griffin utilized the new DUAL-LOK® locking mount system with this suppressor, an often demanded feature by government customers.  This combined with generations of R&D brought a compact, highly durable, low flash, and top performing suppressor to market for government and civilian customers. 

The HRT-556™ features the patent pending DUAL-LOK® mounting system, an accurate, robust, reliable, and wear free system with robust muzzle device support.  The suppressor itself was designed to have minimal flash signature, POI shift, and gas blow back, coupled with maximum strength, durability, and high sound signature reduction performance.  

Baffle technology for this product is linked to a recent Griffin patent and aggressive 4 month R&D program, and a second high durability R&D program targeting reduction of cyclic rate increase, making the suppressor host firearm operating system more reliable and less affected by the suppressor, reducing the contamination of breathing air in the vicinity of the operator’s face compared to previous technology.  The patented low profile flash suppressing end cap further adds performance to the low flash baffle system. 

DUAL-LOK® suppressors are machined in Griffin’s Watertown Wisconsin facility by freedom loving Americans.  

This suppressor is NOT compatible with the DUAL-LOK® Stealth Flash Suppressor (2.75") or the DUAL-LOK® Bayonet Flash Hider. 

SPECS :

FEATURES : 

• Utility patents pending

• Wear free mounting system, requires no consumable parts

• Taper lock interface ensures security and accuracy

• ACME thread provides speed of attachment

• Locking ring incorporates 3 anti-rotation teeth to eliminate inadvertent loosening

• 120 effective positions ensure a rock-solid suppressor mount and provide extremely low POI shift

• 17-4 stainless steel & 718 Inconel

• Traditional Tube Design with internal flash hiding characteristics

• Patent pending ECO-FLOW™ baffle system for reduced blow back

• Patented flash reducing end cap

• DUAL-LOK® Minimalist Brake 1/2x28 5.56mm (.22 cal) Included

• ¾” wrench flats on muzzle devices

• Collar Nitrided for increased surface hardness, corrosion, and wear resistance

• Suppressor body H900 heat treated and Cerakoted

• Available in black or FDE

• Perpetual™ Lifetime Warranty