Leapers 140mm Picatinny Weaver Style Shotgun Tactical Scope Mount with Fitting Kit

Adding an optical sight to your shotgun can significantly enhance accuracy for target shooting, hunting, or tactical scenarios. This scope mount provides a dedicated, secure platform for your scope, designed specifically for Mossberg 500 Series and compatible shotguns. The included Allen key and mounting screws mean you have everything required for installation without the need to search for specialised hardware. Its low-profile, 140mm-long rail is constructed from lightweight aluminium alloy and features a standard Picatinny/Weaver interface, offering a versatile and robust mounting solution ready for immediate use.

Features and Construction

This mount is built with practicality and compatibility as its core principles. The design focuses on providing a stable base for your optic while maintaining a streamlined fit on your firearm.

Material and Build

The rail is manufactured from aluminium alloy, chosen for its favourable strength-to-weight ratio, resulting in a final product weight of just 60 grams. This helps minimise added bulk on your shotgun. The surface features a black anodised finish, which provides increased resistance to wear and corrosion compared to bare metal. This finish contributes to the mount's durable appearance and practical longevity under typical field conditions.

Size and Practical Fit

The primary rail measures 140mm (5.5 inches) in length, 20mm in width, and 9mm in thickness. This 20mm width conforms to the standard Picatinny/Weaver specification, ensuring broad compatibility with commercially available scope rings. The rail incorporates 13 distinct slots along its length, giving you multiple discrete attachment points for your rings. This allows for precise fore-aft adjustment of your scope to achieve the correct eye relief—a critical factor for consistent, comfortable shooting and accurate sight picture acquisition.

Uses and Placement

This mount transforms your shotgun into a platform capable of supporting magnified optics or red dot sights, expanding its utility beyond traditional bead-sight aiming.

Event or Professional Use

For competitive shooting disciplines involving shotguns or for security and law enforcement roles, a mounted optic can improve shot placement at varied distances. The low-profile design of this rail keeps the overall sight height manageable, which can be advantageous for maintaining a consistent cheek weld on the stock. The secure mounting system, utilising the provided screws, ensures the optic remains zeroed despite the recoil generated by 12-gauge or other shotgun cartridges.

Everyday Home Use

For hunters or shooting sports enthusiasts, mounting a scope can make a shotgun more effective for precise slug shooting at longer ranges or for turkey hunting where accurate shot placement is paramount. The straightforward installation process, facilitated by the complete hardware kit, makes it accessible for individuals to fit themselves without requiring specialist gunsmithing tools, offering a significant upgrade to the firearm's capability for a range of outdoor activities.

Benefits and Buying Value

The value of this product lies in its specific design, included components, and the practical enhancement it offers to compatible shotguns.

Reuse and Low Maintenance

The aluminium construction with anodised finish requires minimal ongoing maintenance; simply keeping it clean and checking screw tightness periodically is sufficient. The design allows the mount to be a semi-permanent addition to your firearm. Should you wish to change optics, you can do so easily by loosening the scope rings and sliding them to a new position on the rail's 13 slots, or by swapping the rings entirely, without needing to remove the base rail from the shotgun.

Why Choose This Product

This mount stands out because it is supplied as a complete fitting kit specifically for Mossberg 500 Series shotguns. Many rails require you to source your own screws, which can be a frustrating process of matching obscure thread types and lengths. Here, the four correct screws and the matching Allen key are included in the package, guaranteeing a proper fit and saving time and potential expense. The combination of the 140mm length, 13-slot design, and lightweight aluminium build offers a balanced solution for adding optic capability without excessive weight or complexity.