The NT4 series has maintained a legendary reputation as the most trusted suppressor for many military and law enforcement agencies since the mid 90s for its extreme durability and excellent sound suppression. The new PRG series makes use of Pressure Reduction Technology to offer enhanced performance while reducing gas blowback and maintaining the legendary durability of the original NT4 design as well as legacy compatibility with the M4QD mount. This model features an all-black color and does not include a muzzle device.