Optics & MountingBkl TechnologiesSold by Brownells

Bkl Technologies

Bkl Tech 500 Series Picatinny Adapters - 2-Piece Dovetail To Weaver Adapter Mount

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Aircraft-grade Aluminum

Adapter rail for Picatinny scope

Six Crossbolts

Apply even pressure along the

Generous Cross

Slots expand scope ring and

Clamping Screws

Fit pre-drilled holes to help

Extends Approximately

.620" above the dovetail

$27.95
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SKU: 749012540

Overview

This adapter rail is designed to bridge 3/8" Picatinny or European 11mm dovetail setups with optics and mounts commonly used on bolt-action rimfire rifles. Its six crossbolts are intended to apply even pressure along the dovetail, helping the rail stay centered during installation, while the open slot layout gives shooters more flexibility in ring and optic placement. The two-piece configuration can be useful when you want a compact mounting solution, including for a red dot sight, but it does add an extra component to manage compared with a single-piece rail. Hardcoat anodized and made from aircraft-grade aluminum, it offers a practical mounting option for hunters and shooters setting up rimfire rifles for plinking or informal competition.

Why Hunters Choose the Bkl Technologies

Aircraft-grade Aluminum

Construction for a lightweight adapter

Fits Picatinny

Scope mounts and 3/8" or

Six Crossbolts

Apply even pressure to help

Generous Cross

Slots provide more scope ring

Clamping Screws

Fit pre-drilled holes for easier

Key Features

  • Aircraft-grade aluminum adapter rail for Picatinny scope mounts on 3/8" or European 11mm dovetails.
  • Six crossbolts apply even pressure along the dovetail to help keep the adapter centered.
  • Generous cross slots expand scope ring and optics mounting options.
  • Clamping screws fit pre-drilled holes to help spread the legs for easier installation on oversized rails.
  • Extends approximately .620" above the dovetail.
  • Hardcoat anodized, matte finish from Bkl Technologies.

Best Used For

  • Bolt-action rimfire shooters needing a Picatinny or 3/8-inch dovetail adapter rail
  • Hunters setting up a red dot sight on a compatible dovetail-mounted rifle
  • Weekend plinkers wanting more scope ring and optics mounting options
  • Informal competitors needing a centered, clamped adapter for dovetail rails

Specifications

Adapter TypeDovetail to Weaver adapter mount
Blade FinishHardcoat anodized
Colormat
Compatible MountsPicatinny scope 3/8" or European 11mm dovetail mounts
Compatible RiflesMany bolt-action rimfire rifles
Cross SlotsGenerous cross slots
CrossboltsSix
Height Above DovetailApproximately .620"
MaterialAircraft-grade aluminum
Mounting NotesClamping screws also fit into pre-drilled holes to equally spread the legs
Recommended AccessoryRed dog sight
Single Rail Length4"
Single Rail Weight3.1 oz.
Two 1 Rail Sections Weight.75 oz. each
Use CaseWeekend plinking or informal competition

Pros

  • Aircraft-grade aluminum construction for a lightweight adapter rail
  • Fits Picatinny scope mounts and 3/8" or European 11mm dovetails
  • Six crossbolts apply even pressure to help keep the adapter centered
  • Generous cross slots provide more scope ring and optics options
  • Clamping screws fit pre-drilled holes for easier installation on oversized rails
  • Hardcoat anodized matte finish

Considerations & Trade-offs

  • Designed for dovetail-equipped rimfire rifles, so it is not a universal mount for every firearm platform.
  • The adapter adds approximately .620" above the dovetail, which may affect optic height and cheek weld depending on the setup.
  • It is offered as a 4" single rail or two 1" rail sections, so the format you choose will affect how much mounting space you have.
  • The description emphasizes use with Picatinny, 3/8", or European 11mm dovetails; compatibility still depends on the rifle’s specific rail dimensions and fit.

Suggested Comparisons

  • Rimfire scope mounting accessories
  • Dovetail-to-Picatinny adapter rails
  • Red dot sight mounting solutions
  • Weaver/Picatinny rail adapters

Suggested Accessories

  • Scope rings
  • Red dot sight
  • Picatinny rail accessories
  • Mounting hardware

Frequently Asked Questions

What rifles or bases is this adapter designed to fit?

It is described as a Picatinny scope adapter for 3/8" or European 11mm dovetail mounts, which are found on many bolt-action rimfire rifles.

Is this a one-piece rail or a two-piece set?

The product is described as a 2-piece dovetail to Weaver adapter mount. The long description also notes two 1" rail sections.

How does the mount stay centered on the dovetail?

The description says six crossbolts apply even pressure along the length of the dovetail to help keep the adapter rail centered.

What optics can be mounted on it?

The rail has generous cross slots for increased scope ring and optics choices. The description also specifically mentions it is perfect for mounting a red dot sight.

How much does it add above the dovetail?

It extends approximately .620" above the dovetail.