Installing a PVS 22/27 Universal Night Sight (UNS) mount: McCann Industries Stock Imbedded Rail System (SIRS)
Night vision is becoming increasingly popular among shooters. Beyond its military, law enforcement and defensive uses, predator and pest control applications have pushed its use into the main stream. Traditionally, one of the down sides of night vision optics was the inability to use the same sight and zero both day and night. With the advent of clip on systems like the AN/PVS 22, the day optic, with the same familiar zero, can be used in low light conditions as needed. This game changer allows the end users familiarity with the day optic system to carry over to low light conditions.
Typically, these night vision systems are mounted to a rail embedded on the front of the rifle stock. McCann Industries SIRS mount is an excellent proven example of this.
The following documents our installation of the SIRS and is presented for information purposes only.
We ordered the following items from Brownells for this project:
The AR-15/M16 M4 rifle defines the contemporary firearm. The thin wispy 20″ barrel and triangular hand guards of the original models are long gone, replaced by shorter modular rifles capable of a wide range of applications. […]