The KAC QDSS NT4-PRT/PRG Sound Suppressor mounts to M4QD line of muzzle devices. The QDSS NT4(Combat Rifle Suppressor) features PRT/PRG(Pressure Reduction Technology) which vents pressure away from the user. Utilizes a modern sintered Inconel body.
The QDSS NT4 PRG offers the aesthetics of the original NT4 but with modern sintered manufacturing and pressure reduction technology.