Marble Arms Rifle Dovetail #63 Flat Top Short Shank Rear Sight Blk

The Marble Arms Rifle Dovetail #63 Flat Top Short Shank Rear Sight is a time-tested replacement and upgrade option for hunters and shooters running older rifles or custom builds with standard 3/8" dovetail slots. This adjustable rear sight base gives you a practical alternative to fixed sights, letting you dial in your zero at different ranges and customize your sight picture to suit your shooting style and eye relief preference. Whether you're restoring a vintage rifle, swapping out factory sights on a platform that deserves better, or building a rifle from parts, the #63 offers solid, no-nonsense performance without complications.

Marble Arms has been making rifle sights since the early 1900s, and that heritage shows in the straightforward engineering here. The flat top uprights keep your sight line clean and uncomplicated, while the short shank design fits rifles where a full-length sight might foul your cheek weld or handguard. Installation is straightforward if you have a dovetail fixture or access to a gunsmith—no special tools required once the sight slides into place.

This is ideal for shooters building or refurbishing lever-actions, vintage bolt rifles, or any rifle that came from the factory with dovetail-mounted sights. If you're done with fixed irons and want the flexibility to adjust for different ammunition or ranges, or if you simply prefer Marble's proven design over what came stock, this rear sight base gives you that option without replacing your entire sight system.

Key Features

• Fits standard 3/8" dovetail slots—compatible with most classic rifle platforms
• Flat top uprights for a clean, unobstructed sight picture
• Short shank geometry minimizes interference with modern cheek welds and modern handguards
• Adjustable design for zeroing at different distances and load variations
• Durable black finish
• Replacement or upgrade option for rifles with factory fixed or damaged sights

Specifications

Frequently Asked Questions

What rifles use a 3/8" dovetail rear sight?

Most classic rifles built before the 1960s and many modern reproductions use 3/8" dovetail slots. Lever-actions (Winchester, Marlin), older bolt rifles, and some vintage .22 LR rifles are common candidates. If you're unsure whether your rifle has a 3/8" dovetail, measure the slot width or consult a gunsmith or your rifle's manual.

Can I install this rear sight myself?

Installation requires the sight to be slid into the dovetail slot and secured. A dovetail fixture or gunsmith's press is the safest, most accurate approach to avoid damaging the sight or rifle. If you're experienced with gunsmithing, you can attempt it with proper fixtures; otherwise, professional installation is recommended.

What is the difference between the #63 short shank and other Marble Arms rear sights?

The short shank design is engineered to clear modern cheek risers, wide handguards, and modern ergonomic stocks without interference. Full-length shanks work on classic rifles with lower profile hardware; short shanks fit contemporary builds and rifles where clearance is tight.

Does this sight come with an upright, or just the base?

This product is the rear sight base with flat top uprights included. Marble Arms offers interchangeable upright styles separately if you want to swap the sight picture later.