Lyman 12S Slot Blank

• Dovetail Slot Coverage: Fills the rear sight dovetail after a sight is removed, giving the rifle a cleaner finished look and covering the exposed slot.
• Steel Sight Accessory: Built as a simple metal blank for rifle sight work, it provides a practical way to tidy a barrel without altering the firearm permanently.
• Lightweight Construction: At 15.00 g, it adds very little weight, so it does not change the rifle’s handling or balance.
• Made in USA: Domestic manufacture reflects Lyman’s long association with traditional rifle sight components and accessories.

About the Lyman Accessories Series

The Lyman Accessories series covers the small but important parts that support sight installation, replacement, and general rifle setup. Within the broader Lyman lineup, these accessories sit alongside the company’s long-established gun sight products and are aimed at shooters who want practical, serviceable components rather than decorative add-ons. The series is especially relevant for owners of traditional rifles, hunting rifles, and older platforms where iron sights, dovetail-mounted parts, and receiver sight systems remain part of the rifle’s working setup.

What distinguishes this family is its focus on straightforward function. These parts are intended to solve common fitting and finishing tasks, whether that means replacing worn components, adapting a rifle after a sight change, or covering an unused mounting point neatly. In that role, the series complements Lyman’s receiver and tang sight heritage by helping shooters keep a rifle both usable and visually tidy. The design philosophy is simple: durable materials, familiar dimensions, and compatibility with practical field rifles where reliability and clean installation matter more than unnecessary complexity.

About the Lyman 12S Slot Blank

The Lyman 12S Slot Blank is a small accessory with a very specific job: it fills the dovetail when a sight is removed. On rifles that originally carried a barrel-mounted rear sight, removing that sight can leave an open slot that interrupts the barrel’s appearance and can collect dirt or moisture. This blank provides a clean way to close that space while preserving a finished, intentional look.

That makes the 12S especially useful on rifles that are being reconfigured with receiver sights, optics, or other sighting arrangements where the original rear sight is no longer needed. Instead of leaving the dovetail exposed, the blank restores a more complete profile and helps the rifle look properly set up for its new role. Because it is a simple non-optical component, it does not affect zeroing, sight picture, or handling beyond adding only 15.00 g of weight.

Its appeal lies in that simplicity. The black finish keeps the part visually discreet on most rifle barrels, and its role as a dedicated rifle sight accessory suits both working hunting rifles and traditional builds where neat fitment matters. For anyone refining a rifle after removing a rear sight, the 12S Slot Blank offers a straightforward finishing piece rather than a makeshift solution.

About Lyman

The Lyman Gun Sight Company began in 1878 in Middlefield, Connecticut, and the brand has long been associated with practical equipment for shooters and reloaders. Beyond gun sights, Lyman produces a broad range of shooting and reloading tools, including dies, presses, and bullet-casting equipment, which gives the company a strong foothold in traditional shooting disciplines as well as workshop use.

Lyman’s sight products remain closely tied to its origins, with tang and receiver sights that continue principles established in William Lyman’s original sight design. Over time, the company expanded its reach through products for both firearm setup and ammunition loading, while keeping sight accessories as part of its core identity. Today, Lyman Products is headquartered in Middletown, Connecticut and remains well known for functional, established designs in the shooting category.

Main Features

• Manufacturer: Lyman
• Series: Lyman Accessories
• Made in: USA
• Accessory type: Slot blank
• Compatible with: Rifles
• Color: Black
• Weight: 15.00 g

Warranty

Lyman lists a 2-year warranty for this product. That period gives clear coverage for defects in materials or workmanship within the stated term.