Initially designed for elite HRT unit's, Griffin Armament's HRT-556 model is the shortest addition to the DUAL-LOK family of suppressors. The latest version HRT-556 (G2) Suppressor features an improved low-profile flash hider endcap that works in conjunction with the ECO-FLOW baffle stack to reduce gas backpressure and improve cyclic performance of the host firearm. Other notable improvements incorporated into the HRT-556 (G2) include an improved, lower backpressure ECO-FLOW(TM) baffle stack, and a thicker blast baffle to increase durability vastly over the already incredibly robust G1 HRT-556. The HRT-556 (G2) 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.