To be used with the InSight™ and InSight™ Short Draw Peep Housing (Included FREE in the kits). 
The apertures do NOT work with our Raptor ™ Peeps.

With the InSight™ Peep Apertures, there is no need to switch out your peep when all you need to do is change your aperture size.
Our polymer construction ensures the aperture will neither bind in the peep housing nor scratch the clarifying lens or housing.
The polymer material also prevents the aperture from being scratched or marred by tools during installation.