Specialty Archery has five sizes of apertures to select from which will screw directly into all Specialty Archery Peeps with use of the Dual Aperture Wrench (210078). You will need a peep reducer (753-3) for the apertures to fit into the 749-37LH, 749-42LH, and 753-1 peeps.
See "Find a Dealer" on home page for a dealer with a aperture display near you, to help you select the aperture best suited to your needs. Additional information can be found in the FAQs tab on our home page.
CAUTION: High powered bows create a great amount of vibration. This may loosen verifiers, clarifiers and apertures over time. Tighten your apertures before each use. If you hear a buzzing sound, this indicates a loose aperture. You may use a drop of the blue Loctite or Vibra-Tite VC 3 to help hold the apertures in place.