The Knights Armament QDSS NT-4 PRG 5.56mm NATO QD Rifle Suppressor Black brings modern pressure reduction technology to the classic NT4 footprint. Built around a sintered Inconel body and the proven NT4 Gate Latch quick-attach system, it interfaces with KAC M4QD and 3-prong QDC muzzle devices to deliver secure mounting and repeatable performance. By venting pressure forward of the shooter and incorporating KAC’s Purge flash reduction design, this suppressor reduces gas blowback and first-round flash while maintaining durability and sound reduction.

This model is ideal for shooters who need to retain legacy KAC mounts but want updated suppressor performance for training, range use, and general rifle shooting. Its compact overall length and balanced weight help preserve handling characteristics while easing stress on rifle components by keeping carrier velocity and rate of fire close to unsuppressed operation. Backed by Knights Armament’s reputation for precision engineering and innovation, the QDSS NT-4 PRG is a refined choice for serious 5.56mm platforms.

Key Features:

• Manufacturer: Knights Armament
• Model: QDSS NT-4 PRG 5.56mm NATO QD Rifle Suppressor Black
• Caliber: 5.56mm NATO / .223 Remington
• Overall Length: 6.4"
• Addition To Bare Muzzle: 5.9"
• Weight: 19.8 oz
• Attachment System: NT4 Gate Latch, compatible with KAC M4QD and 3-prong QDC muzzle devices
• Sound Reduction: 28 dB (approximate, per listed specifications)
• Color: Black