Will the Hawke 22401 adaptor base fit on my Tikka or Ruger rimfire rifle?

No, this adaptor base is specifically designed for 9-11mm and 3/8-inch dovetail receivers. It will not fit proprietary curved or oversized receiver bases such as Tikka 16mm or Ruger proprietary dovetails unless you use a separate specific adaptor.

What is the minimum continuous rail length required on my rifle to mount this 1-piece base securely?

Your firearm's receiver dovetail section must offer at least 110 mm of uninterrupted clamping length to properly seat the full bottom base of the 155 mm rail. If you have a split bridge or an ejection port clearance issue that breaks this continuous length, a two-piece adaptor like the Hawke 22400 or 22405 is recommended instead.

Does this mechanical mounting accessory require any electrical safety compliance or SAA/RCM certifications for use in Australia?

No, the Hawke 22401 is a non-powered, mechanical optic mounting accessory constructed from high-grade aluminium with a matte black anodised finish. Consequently, requirements for 240V mains compatibility, Australian electrical standards, and SAA/RCM certifications do not apply.

What calibre ratings and firearm platforms are recommended for this Hawke adaptor base?

The adaptor base is optimised for airguns, including PCP, CO2, and spring-piston models, as well as light rimfire platforms such as .22 LR, .22 WMR, and .17 HMR. While manufacturer specifications remain silent on heavy centreline magnum recoil limits, it is ideally suited for outback vermin control and sport shooting setups on traditional rimfires.

Dovetail Mount 22401 - Hawke 22401

The Hawke 1-Piece Adaptor Base converts standard 9–11mm airgun grooving and 3/8″ rifle dovetail receivers into a standard Weaver/Picatinny mounting platform. Built from high-grade aluminium with a matte black anodised finish, this one-piece mechanical mount features a 155 mm extended top rail over a 110 mm base clamp section. Weighing between 93 g and 95 g, it provides the mounting length and cross-slot surface needed to secure modern optics, quick-detach scope rings, or digital scopes to rimfire rifles and airguns.

Key Features

Interface Conversion: Adapts 9–11mm and 3/8″ dovetails into standard Weaver and Picatinny cross-slot rails for modern optic compatibility.
Extended Cantilever Profile: Measures 155 mm along the top rail to provide extra real estate and flexible eye-relief positioning.
Solid Base Clamping: Features a continuous 110 mm bottom clamp that fastens securely along the receiver grooving without marring.
Lightweight Construction: High-grade anodised aluminium keeps the total added weight to 93 g – 95 g.

Specifications

Top Rail Length: 155 mm (6.1 in)
Bottom Clamp Length: 110 mm (4.3 in)
Weight: 93 g – 95 g (approx. 3.3 oz)
Receiver Compatibility: 9–11mm (airgun) and 3/8″ (rifle) dovetails
Top Interface: Standard Weaver / Picatinny rail
Material: High-grade aluminium
Finish: Matte black anodised

Who is the Hawke Dovetail to Weaver/Picatinny 155mm Adaptor Base for?

Australian airgun vermin controllers — Needs the 155 mm extended top rail of this adaptor base to mount compact red dots or magnified optics onto standard 9–11mm air rifle dovetails with flexible eye relief.
Rimfire sport shooters adapting thermal or digital optics — Requires a stable platform to convert 3/8″ rifle dovetails into a Picatinny rail, utilising the full 110 mm clamping base to support heavier digital and thermal imaging units.
Hunters mounting Picatinny quick-detach scope rings onto classic .22 LR rifles — Relies on the 93 g – 95 g lightweight aluminium dovetail to Picatinny adaptor to run modern quick-detach cross-slot ring mounts without adding excessive bulk to the rifle.

Less suitable for: Firearm receivers that lack at least 110 mm of uninterrupted dovetail clamping length, or platforms with split bridges and large ejection ports, which require a two-piece dovetail adaptor base instead. It is also unsuitable for non-standard or proprietary systems such as Tikka 16mm or Ruger proprietary dovetails, which require model-specific receiver adaptors.

SKU	HWK39831LP
Model #	22401
Brand	Hawke
Shipping Weight	1.0000kg

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Hawke 22401 Adaptor Base 11mm To Weaver Picatinny 155mm

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