This Henry Big Boy Scope Mount is for Big Boy Rifles that are drilled and tapped on the top of the receiver. Instructions on installation of the scope mounts is provided in the packaging. All Henry Scope Mounts accept Weaver style detachable 1" top mount rings.
Specifications and Features:
Henry
Big Boy Scope Mount
For: Drilled and Tapped Big Boy Receivers
Accepts Weaver style detachable 1" top mount rings
Specifications and Features:
Henry
Big Boy Scope Mount
For: Drilled and Tapped Big Boy Receivers
Accepts Weaver style detachable 1" top mount rings
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Can a Holosun 403 C fit on a bb sm rail?
Answer:
Hello Ernest! This mount measures out at approximately 4-5/8" with 2 fixed slots. I can't confirm your Holosun 403 C's footprint size. I should imagine it would fit, but can't confirm having not tried it myself.