Specialty Archery has five sizes of apertures to select from which will screw directly into Specialty Archery Pro Series or Ultra Lite Peeps with use of the Dual Aperture Wrench.
You will need a Peep Reducer for the Apertures to fit into the Large Hooded (#749-37LH) or Large Non-hooded Peeps.
Sizes available: 1/8″, 3/32″, 1/16″, 3/64″, and 1/32″.
To select Aperture size:

• If you use a 1 3/8” or Versa scope, try the 1/32”, 3/64”, or 1/16” Aperture.
• If you use a 1 5/8” or the Pro Series scope, try the 3/64”, 1/16”, or 3/32” Aperture.
• If you use the Super D, Pro Series XL or Versa Scope 3D, use the 3/32” or 1/8” Apertures.

NOTE: for larger scopes you may also want to consider one of the larger Large Peep Housings.
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 Vibra-Tite VC 3, Teflon tape, bow wax, or any other non-permanent binding agent on the threads.