Brownells 75th Anniversary - A Shooting Heritage

Machined aluminum gauges give a precise, repeatable indexing reference so front and rear sights can be aligned perfectly, every time. Front gauge attaches to the gas cylinder (M1) or flash suppressor (M1A); rear gauge fits in the stripped rear sight housing.

Big Book Catalog, Issue:70, Page:469
SPECS: Machined aluminum, silver, matte finish. 6" (15cm) long, 1" (2.5cm) square. Includes illustrated instructions.
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