The American Rifle Company 40mm Medium Scope Rings, Black (American Rifle Company part no. MB-R-40-28) are two-piece steel scope rings from American Rifle Company, bored for a 40mm main tube and built to a medium height that gives a balanced middle-ground height that clears most common objective bells and iron sight setups. Clamping to a standard Picatinny rail, they’re built to hold a scope rock-solid under recoil for precision rifle competitors and long-range hunters who can’t afford a ring shifting zero mid-string.

Key Specifications

• Bored for a 40mm main-tube scope.
• Built to medium height (1.10”), measured from the rail interface to the ring’s tube centerline.
• Clamps to a standard Picatinny rail for broad mounting compatibility.
• Finished in black to match most factory rifle finishes.
• Engineered for a rigid, no-slip clamp on the scope tube under recoil.

Frequently Asked Questions

Will these fit a different tube diameter? No, these rings are bored specifically for a 40mm main tube and will not securely clamp a different diameter.

Why choose medium height? Ring height controls scope-to-bore clearance and cheek weld; medium height gives a balanced middle-ground height that clears most common objective bells and iron sight setups.

Buy the American Rifle Company 40mm Medium Scope Rings, Black

Order the American Rifle Company 40mm Medium Scope Rings, Black from our Lubbock, Texas gun shop for fast, insured shipping—a rigid steel ring set built to keep a 40mm scope locked on zero. Browse more scope rings from our Lubbock, Texas shop.