Merit #3 Adjustable Master Aperture 1-1/2" Diameter 7/32"-40 Thread fits Lyman and Williams Sights Black

Product Family #: 2527216581
Please Sign In or Create an Account to use this feature.
  • Information



  • Provide extreme precision and consistent adjustments
  • Build to withstand use in the field
  • Simple installation


For dedicated target and competitive shooters, aperture sights are desirable for their extreme precision and consistent adjustments. It is now possible for hunters to benefit from the same advantages with the Merit #4 Hunting sight disc. Built to withstand extended use in the field, the aperture is adjustable from 0.022" to 0.125" and uses a strong internal spring to hold the selected sight setting constant during recoil. The size of the disc is meant to be compatible with many commonly used tang-mounted sights, and is intended to simply replace the existing fixed aperture.


Technical Information


Aperture Types:


#3 apertures are designed for target shooting. The 12 leaf shutter opens and closes without changing the point of  impact. The shutter leaves are supported at each end to withstand heavy recoil. The aperture varies from .022 to .125"  diameter. Internal click spring maintains setting.

#3 master is favored by high power shooters and other outdoor competitors. Shaded aperture. Flexible neoprene light  shield. May be converted to target model.

#3 target is favored by indoor smallbore and air rifle competitors. Steel face.

#4 hunting aperture is smaller than the target models, allowing for low mounting and reduced weight. Click spring  maintains aperture setting. Withstands any recoil. Aperture varies from .022 to .156" diameter.

Was this information helpful? Yes No

Thank you! Your valuable feedback helps improve our product information and offering.

Help Us Improve

Please enter the missing required fields:

    Do you accept our terms and conditions? *
    Know someone who may like this? Email this Page to a Friend

    Customer Reviews

    The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.

    NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.