- 17-4 stainless steel deflectors
- Internal Grade 5 Titanium coils
- Fully-welded outer body made of 17-4 heat treated stainless steel
The HX-QD 556K uses the proven baffle-free Flow-Through technology that directs expanding gasses away from the bore-line. This unique system routes the gas through the coil and deflector then out the muzzle, resulting in sound level and blowback reduction.
The QD-556K offers Flow-Through design with hearing safe sub-140s dB, zero flash performance, full auto-rated, zero minimum barrel restrictions and easily passes USSOCOM's reliability stress test.
136 – 140 dB on 20" AR15 DI using commercial grade 55 gr ammo
138 – 142 dB on 16" AR15 DI using commercial grade 55 gr ammo
142 – 146 dB on 10.5" AR15 DI using commercial grade 55 gr ammo
|Materials||17-4 Stainless Steel Deflectors, Grade 5 Titanium Coils|