The Knights Armament Company QDSS NT4 PRG is a purpose-built suppressor for 5.56 NATO/.223 Remington rifles, designed to integrate with KAC QDC-equipped muzzle devices for secure and repeatable attachment. The unit combines high-strength materials with engineered baffle geometry to manage gas expansion and sound signature while supporting reliable cycling in tactical and duty applications.

Finished in a corrosion-resistant black coating, the NT4 PRG features a quick-detach interface that mates with compatible KAC QDC muzzle devices for rapid installation and removal without sacrificing alignment integrity. The suppressor’s internal geometry balances attenuation performance with manageable size and weight for modern rifle systems.

Specifications

• Manufacturer: Knights Armament Company

• Model: QDSS NT4 PRG

• Caliber: 5.56 NATO/.223 Remington

• Mount Interface: KAC QDC quick-detach compatible

• Material: High-strength steel/alloy construction

• Finish: Black

• Length: ~7.0 in

• Weight: ~15.0 oz