Compass Lake AR-15 Aperture Sight | Sinclair Intl

Many AR-15 competitive shooters find they have a far superior sight picture using a hooded rear sight with perfectly round screw in apertures. Compass Lake Engineering's hooded rear sight assemblies are available with half MOA or one fourth MOA of windage adjustment. These sights utilize the existing half MOA elevation adjustment. Both models include a standard .040 inch aperture. Additional apertures are available in .036 inch, .042 inch, .046 inch and .052 inch. These sights are well made, easy to install and legal for service rifle competition for NRA and CMP matches.


Sinclair, Issue:5B, Page:217
COMPASS LAKE .036   APERTURE
749-001-272WS
Compass Lake .036" Aperture
749001272Compass Lake .036" Aperture

Mfr Part: 036APERTURE

Discontinued by Sinclair

Product has been discontinued and no longer available.

COMPASS LAKE .042   APERTURE
749-001-248WS
Compass Lake .042" Aperture
749001248Compass Lake .042" Aperture

Mfr Part: 042APERTURE

Discontinued by Sinclair

Product has been discontinued and no longer available.

COMPASS LAKE .052 APERTURE
749-001-249WS
Compass Lake .052" Aperture
749001249Compass Lake .052" Aperture

Mfr Part: 052APERTURE

Discontinued by Sinclair

Product has been discontinued and no longer available.

Compass Lake AR-15 Aperture Sight