BKL-374 0.6″ Long Offset Dovetail Rings – 30 mm Scope Mount

The BKL-374 0.6″ Long Offset Dovetail Rings are precision-machined scope rings designed to mount a 30 mm riflescope on firearms with standard dovetail rails (3/8″ or 11 mm). These rings are an offset style, meaning they help extend the scope forward slightly — useful for firearms with minimal rail length or where reaching comfortable eye relief is challenging.

Key Features

Offset Ring Design:
• The rings provide an offset mounting position — extending the optic slightly forward relative to where a typical dovetail ring would sit. This is helpful when your rifle’s rail doesn’t allow enough forward scope placement for proper eye relief.

30 mm Tube Compatibility:
• Built to fit scopes with a 30 mm main tube diameter, a common size for modern optics offering good adjustment range and strength.

Dovetail Rail Fit:
• Compatible with the most common 3/8″ (9 mm) or 11 mm dovetail rails found on many airguns and rimfire rifles — meaning these rings can be used on a wide variety of platforms without rail conversion.

Solid Aluminium Construction:
• Made from high-performance aluminium with a durable finish, these rings balance strength with lightweight design, helping keep your firearm balanced while still securely holding your optic.

Patented Clamping System:
• Incorporates a secure clamping design to help maintain a steadfast hold on the dovetail rail, reducing the risk of movement under recoil.

Technical Specifications

These specs are drawn from typical listings for the BKL-374 model.

Performance & Practical Use

The offset design positions the scope slightly forward compared to standard dovetail rings, helping shooters achieve proper eye relief on rifles where the dovetail rail doesn’t extend far enough toward the muzzle. This can be especially useful on air rifles and rimfire guns where the available mounting surface is limited.

Because the rings are made for 30 mm tubes, they work well with modern optics that need more clearance and adjustment range than smaller diameter scopes. These rings also allow you to maintain solid contact with the rail’s dovetail without needing rail adapters or extensive modifications.

Best Suited For:

✔ Firearms with limited dovetail rail space
✔ Rifles requiring forward scope placement for eye relief
✔ Optics with 30 mm main tubes
✔ Shooters upgrading from basic dovetail mounts

User Tips

Check Rail Size:
Before installation, confirm your rifle’s dovetail rail width (3/8″ vs 11 mm) to ensure proper fit — these rings accommodate both of the most common standards.

Scope Positioning:
When installing, slide the scope forward in the rings before tightening to achieve your preferred eye relief and ensure a comfortable, clear sight picture.

Secure Mounting:
Tighten all screws evenly to maintain alignment and prevent scope creep — uneven torque can cause the scope to shift over time.