The Henry Cantilever Scope Mount (brand part no. BBCSM) is a factory 1-piece Picatinny base built specifically for Henry’s 2nd Generation Big Boy lever action rifles, mounting directly to the receiver’s top for a solid, repeatable scope platform. Henry rifles come drilled and tapped for scope mounts, and this cantilever base is designed for Big Boys drilled and tapped on top of the receiver rather than the earlier generation’s under-the-rear-sight pattern, so it’s important to confirm which generation a given Big Boy is before ordering. It accepts Weaver-style detachable 1-inch top mount rings, sold separately, and fits both brass and steel 2nd Generation models. Installation instructions ship in the packaging.

Key Specifications

• Built as a 1-piece cantilever base, mounting directly to the receiver in a single unit.
• Fits Henry lever action Big Boy rifles specifically.
• Mounts to the receiver rather than under the rear sight, matching 2nd Generation Big Boy drilling.
• Accepts Weaver-style detachable 1-inch top mount rings (rings not included).
• Fits all 2nd Generation brass and steel Big Boy models.
• Ships at approximately 0.25 lb, a lightweight addition to the rifle.
• Designed for rifles that are drilled and tapped at the factory for scope mount installation.
• Installation instructions ship in the packaging for a straightforward setup.

Frequently Asked Questions

Will this fit a 1st Generation Big Boy? No, this cantilever base is built for 2nd Generation Big Boys drilled and tapped on top of the receiver.

Are scope rings included? No, the base accepts Weaver-style detachable 1-inch top mount rings, sold separately.

Does it fit both brass and steel Big Boys? Yes, it fits all 2nd Generation brass and steel Big Boy models.

Find more mounting solutions in our scope bases category from Henry Repeating Arms.

Buy the Henry Cantilever Scope Mount for Big Boy Rifles

Adding a scope to a Big Boy the right way starts with a mount cut specifically for that receiver, not a universal clamp-on. Order it from our Lubbock, Texas gun shop for fast, direct shipping.