BKL-558-MB BKL Technologies 4" Long Dovetail to Weaver Mount
$44.95
In Stock - Ships Same Day
BKL-558-MB 4-inch dovetail-to-Weaver/Picatinny rimfire adapter mount converts a rifle's 3/8-inch or 11mm dovetail receiver into a Weaver/Picatinny mounting platform. Designed specifically for rimfire rifles and airguns, this one-piece adapter provides a 4-inch mounting surface while its offset configuration helps clear the action and magazine area on compatible rifles. The BKL-558 adds approximately 0.69 inches of riser height and provides a 0.76-inch overall height, making it useful for mounting red dots, scopes with rail-mounted rings, and other compatible optics.
| Mount Type | Dovetail-to-Weaver/Picatinny Rimfire Adapter |
| Mounting Rail | 3/8" and 11mm Dovetail |
| Overall Length | 4" |
| Clamp Length | 1.65" / 0.75" |
| Overall Height | 0.76" |
| Added Riser Height | 0.69" |
| Port Clearance | 1.72" |
| Weight | 2.6 oz. |
| Finish | Matte Black |
When will this item ship?
Why choose the BKL-558-MB 4-Inch Dovetail-to-Weaver/Picatinny Rimfire Adapter Mount?
The BKL-558-MB provides a practical way to convert a 3/8-inch or 11mm dovetail receiver into a Weaver/Picatinny mounting platform while accommodating the action and magazine area found on many rimfire rifles. Its 4-inch mounting surface provides plenty of room for compatible optics and accessories, while the adapter adds approximately 0.69 inches of height above the original dovetail rail. The 1.65-inch and 0.75-inch clamping areas secure the adapter to the receiver, and the offset portion provides 1.72 inches of port clearance. The BKL-558 is particularly useful for red-dot sights and other rail-mounted optics.
BKL-558-MB Features
- Converts 3/8-inch or 11mm dovetail to Weaver/Picatinny
- Designed specifically for rimfire rifles and airguns
- 4-inch overall mounting length
- 1.65-inch and 0.75-inch clamping areas
- Approximately 0.69-inch added riser height
- 0.76-inch overall height
- 1.72-inch port clearance
- 2.6 oz. lightweight design
- Matte black finish
What rifles is the BKL-558-MB designed for?
The BKL-558-MB is designed for rimfire rifles and airguns equipped with standard 3/8-inch or 11mm dovetail receivers. The adapter converts the original dovetail into a Weaver/Picatinny-style mounting surface, allowing compatible red dots, optics, and other accessories to be installed. Its offset configuration is intended to provide clearance around the action and magazine area on compatible rifles. BKL's mounting system is designed to self-center on both 11mm and 3/8-inch dovetails.
How does the BKL-558-MB compare to other BKL dovetail-to-Weaver/Picatinny mounts?
The BKL-558-MB is the rimfire-specific 4-inch adapter with an offset configuration and dual clamping areas. The BKL-554-MB is also 4 inches long but uses a cantilever configuration to provide additional forward scope positioning. The shorter BKL-566-MB provides a compact 1-inch mounting surface, while the BKL-568-MB provides a full 4-inch clamping length without the 558's offset configuration.
Related BKL Scope Mounts
BKL-558-MB
Specific References
- UPC
- 814136025208
- MPN
- BKL-558-MB
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BKL-558-MB 4-inch dovetail-to-Weaver/Picatinny rimfire adapter mount converts a rifle's 3/8-inch or 11mm dovetail receiver into a Weaver/Picatinny mounting platform. Designed specifically for rimfire rifles and airguns, this one-piece adapter provides a 4-inch mounting surface while its offset configuration helps clear the action and magazine area on compatible rifles. The BKL-558 adds approximately 0.69 inches of riser height and provides a 0.76-inch overall height, making it useful for mounting red dots, scopes with rail-mounted rings, and other compatible optics.
| Mount Type | Dovetail-to-Weaver/Picatinny Rimfire Adapter |
| Mounting Rail | 3/8" and 11mm Dovetail |
| Overall Length | 4" |
| Clamp Length | 1.65" / 0.75" |
| Overall Height | 0.76" |
| Added Riser Height | 0.69" |
| Port Clearance | 1.72" |
| Weight | 2.6 oz. |
| Finish | Matte Black |