Will the Hawke 22150 ring caps fit my 30 mm riflescope or Hawke triple-screw mounts?

No, this specific model (22150) is engineered strictly for 1-inch (25.4 mm) scope tubes and double-screw Hawke Match Mounts or Extension Rings. It does not fit 30 mm main tubes or Hawke triple-screw mounts, which require alternative cap models such as the 22153.

Are these ring caps compliant with Australian electrical and safety regulatory frameworks?

As a purely passive, non-powered mechanical mounting accessory made of machined aluminium, the Hawke 22150 requires no electrical power and does not use 240V AC. Therefore, it is entirely exempt from Australian electrical regulatory frameworks like RCM or SAA certifications.

How do I install the 22150 ring caps and what accessories can I mount on the rail?

You simply replace your standard smooth scope ring caps with the 22150 using the existing double M4x0.7 hex fixings on compatible Hawke 1-inch mounts. The integrated 3-slot Picatinny rail section is ideal for attaching lightweight secondary accessories such as a backup red-dot sight, an IR illuminator, or a laser designator.

How well do these aluminium ring caps hold up during rugged outback hunting trips?

Machined from high-grade aluminium alloy with a matte black anodised finish, the Hawke 22150 is built to withstand harsh bush environments and heavy recoil across standard hunting calibres. While Hawke does not publish numerical temperature limits, the recoil-resistant passive design maintains zero and securely holds mounted accessories through multi-day carry in the field.

Picatinny Ring Caps - Hawke 22150

The Hawke Picatinny Ring Cap Set 1" (Model 22150) is a dedicated mounting accessory designed to replace the standard smooth top caps on compatible Hawke scope rings. Constructed from high-grade machined aluminium alloy with a matte black anodised finish, each ring cap integrates a rigid 3-slot Picatinny rail (MIL-STD-1913) directly above the riflescope tube. This configuration creates an auxiliary mounting platform for secondary tactical and hunting accessories without requiring additional rail space on the rifle's receiver or barrel.

Key Features

Auxiliary Top Rail: Features an integrated 3-slot Picatinny rail section on top of each cap to mount compact optics, lights, or aiming devices.
Direct Cap Replacement: Replaces factory smooth top caps on compatible Hawke 1-inch (25.4 mm) scope ring bases.
Secure Double-Screw Interface: Uses double M4x0.7 hex fixings per cap to maintain solid clamping pressure and recoil resistance.
Machined Aluminium Construction: Manufactured from anodised aluminium alloy for structural rigidity and corrosion resistance across all standard hunting calibres.

Specifications

Model Number: 22150
Scope Tube Diameter: 1 inch (25.4 mm)
Mounting Configuration: Double-screw fixing interface (M4x0.7 threads)
Top Rail Interface: 3-slot Picatinny (MIL-STD-1913)
Material: Machined aluminium alloy
Finish: Matte black anodised
Mount Compatibility: Hawke 1" Match Mounts and Hawke 1" Extension Rings with double-screw fixings

Who is the Hawke Picatinny Ring Cap Set (1") for?

Hunters using backup red-dot sights — installs directly over a 1 inch (25.4 mm) riflescope tube via double M4x0.7 hex fixings to provide an elevated 3-slot Picatinny rail for fast target acquisition at close range.
Night shooters using aiming accessories — provides an integrated 3-slot Picatinny mounting surface directly above a 1 inch (25.4 mm) optic tube to secure an IR illuminator or laser designator without taking up forend rail space.

Less suitable for: Riflescopes built on a 30 mm main tube or mounts utilising a triple-screw configuration; these setups require a dedicated 30 mm ring cap or a triple-screw tactical ring cap set.

SKU	HWK39763LP
Model #	22150
Brand	Hawke
Shipping Weight	1.0000kg

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Hawke 22150 Picatinny Ring Cap Set 1 Inch Double Screw Aluminium

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