BKL 4" Long Rimfire Unitized Dovetail Mount, 25.4 mm

• Unitized one-piece design: The single-base layout keeps both rings aligned on the rifle, which helps maintain a consistent scope position and adds stability for rimfire and airgun use.
• 4-inch rimfire layout: Its extended body and port-clearance design suit bolt-action rimfire rifles, helping preserve access for loading and cartridge ejection.
• Patented auto-centering clamp: BKL’s self-centering clamping system tightens evenly on the dovetail, which helps the mount seat squarely on the rail without drifting to one side.
• Clamp-spreading installation feature: The screws can be moved to the spreader holes to open the clamp for fitting, making installation easier on tight 11 mm or 3/8-inch dovetail rails.
• Aircraft-grade aluminum construction: The aluminum build keeps weight down while providing the rigidity needed for a secure optic mounting platform on rimfire rifles and airguns.

About the BKL 1 Inch Mounts Series

BKL 1 Inch Mounts are the manufacturer’s 200 Series, built for 1-inch scope tubes on standard 3/8-inch rimfire and 11 mm airgun dovetail rails. This family sits at the core of BKL’s mounting range for shooters who need a direct-to-dovetail solution without adding unnecessary bulk. The series is aimed primarily at airgun and rimfire rifle applications, where secure clamping, repeatable alignment, and sensible scope positioning matter more than excess weight or overly complex adjustment.

A defining feature of the series is BKL’s patented auto-centering system, which moves the clamping legs equally as the screws are tightened so the mount stays centered on the rail. The design also includes a practical clamp-spreading feature: the screws can be repositioned into separate holes to widen the clamp during installation on dovetail rails. Across the range, BKL offers separate rings, unitized mounts, cantilever versions, offset models, high variants, and drop-compensated options, with single-strap and double-strap configurations available. The common thread is a straightforward mechanical design in aircraft-grade aluminum alloy, intended to give rimfire and airgun optics a stable, low-mass mounting platform.

About the BKL 4" Long Rimfire Unitized Dovetail Mount, 25.4 mm

The BKL 4" Long Rimfire Unitized Dovetail Mount, 25.4 mm is a purpose-built one-piece 1-inch scope mount for rifles that use an 11 mm or 3/8-inch dovetail. Its layout is especially suited to bolt-action rimfire rifles, where scope placement must work around the loading and ejection area rather than simply clamping as low as possible. The 4-inch body gives a longer contact area on the rail, which helps create a stable mounting base while also giving more flexibility when positioning a scope with a 1-inch tube.

What sets this model apart within the series is its rimfire-specific shape. The mount is designed with clearance for the action area, helping maintain practical access for loading and cartridge ejection on bolt-action rifles. That makes it a sensible choice for classic rimfire platforms where receiver geometry can limit ring placement. The unitized construction also keeps both rings in fixed alignment, reducing the chance of uneven spacing during installation.

BKL’s auto-centering clamping system is particularly useful on dovetail-equipped rifles and airguns because it helps the mount settle evenly as the screws are tightened. The integrated clamp-spreading feature further simplifies fitting on rails that run slightly tight. Combined with its 0 MOA inclination and aluminium construction, this mount focuses on straightforward, secure optic installation for rimfire shooting, target work, and general airgun use where dependable alignment matters more than extra adjustment features.

About BKL Technologies

BKL Technologies originated in Brownsville, Texas, in 1998 and focuses on scope-mounting systems for airguns and rimfire rifles. The company’s product range includes mounts, rings, dovetail adapters, risers, and scope levels, with an emphasis on practical solutions for rifles that use 11 mm and 3/8-inch dovetail rails. BKL manufactures its products from aircraft-grade aluminum alloy, reflecting a design approach that prioritizes low weight, precise fit, and dependable clamping strength.

A key part of the brand’s identity is its patented auto-centering clamping system, developed to self-align the mount as it is tightened. In December 2008, Auto-Numatic Corp. acquired BKL Technologies and moved operations to Fort Worth, Texas. Production remains in Texas, and the company is closely associated with mounting systems made specifically for the needs of rimfire and airgun shooters rather than general-purpose centerfire applications.

Main Features

• Manufacturer: BKL Technologies
• Series: BKL 1 Inch Mounts
• Made in: USA
• Mount type: Fixed unitized dovetail mount
• Scope tube diameter: 25.4 mm - 1"
• Extension: KR 0.0 mm
• Inclination: 0 MOA
• Windage adjustable: No
• Material: Aluminium
• Compatible upper diameter: 25.4 mm (1 inch)
• Compatible platforms: Accuracy International AW, Anschutz 54, Anschutz 64, Anschutz 1761, Anschutz 1770, Anschutz 54.30, Anschutz 1727 F, Anschutz 1827 F, CZ 452 (11 mm), CZ 452 (3/8"), CZ 453 (11 mm), CZ 511, CZ 512, CZ 513, CZ 455, CZ 457, Erma Werke M1, FN Browning T-Bolt (with dovetail), Grünig + Elmiger Supertarget 200, Keppeler Sporting Rifles, Kettner Luger Rimfire, Kimber 82 (Dovetail), Kimber 84, Krico 300

Warranty

This BKL mount is covered by a 2-year warranty.