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Nucleus 2.0 & Archimedes Bolt Heads And Extractors - 0.473'''' Right Hand Bolt Head And Extractor
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$150.00
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SKU: 100035985
Overview
This kit is intended for Nucleus and Archimedes rifle owners who want to configure their action for a different caliber without replacing the rifle itself. It supports the use of Savage-style small-shank barrels, allowing the platform to be adapted with minimal setup. Each bolt head is machined from hardened steel and finished with a DLC coating, which adds a durable protective layer. For hunters and shooters building a multi-caliber ARC setup, it offers a practical way to match the action to the barrel and intended cartridge.
Why Hunters Choose the American Rifle Company
Enables Caliber
Changes on compatible Nucleus and
Supports Multi-caliber
A simple bolt head and
Savage-style Small-shank
Barrel compatibility
Offered 0.473-inch
Right-hand bolt head configuration
Machined From
Hardened steel for a robust
Key Features
- Caliber-change kit for Nucleus and Archimedes rifles
- Designed for use with Savage-style small-shank barrels
- Supports multi-caliber setup with minimal effort
- Includes a 0.473-inch right-hand bolt head and extractor
- Bolt heads are machined from hardened steel
- DLC coating is described as helping ward off wear and corrosion
Best Used For
- Nucleus or Archimedes owners planning a caliber change with compatible small-shank barrels
- Hunters building a multi-caliber rifle setup without relying on a gunsmith
- Shooters needing a right-hand bolt head and extractor for .473-inch cartridges
- Owners of ARC actions wanting a straightforward parts swap between barrel and bolt head
- Users maintaining an American Rifle Company action with matching caliber-specific components
Specifications
| Barrel Compatibility | Savage-style small-shank barrels |
|---|---|
| Bolt Head Size | 0.473'''' |
| Caliber Compatibility | Popular calibers |
| Coating | DLC coating |
| Compatible Rifles | Nucleus and Archimedes rifles |
| Handedness | Right Hand |
| Material | Hardened steel |
| Product Type | Caliber-Change Kit |
Pros
- Enables caliber changes on compatible Nucleus and Archimedes rifles
- Supports multi-caliber use with a simple bolt head and extractor swap
- Designed for Savage-style small-shank barrel compatibility
- Offered in a 0.473-inch right-hand bolt head configuration
- Machined from hardened steel for a robust component build
- DLC coating is stated to help reduce wear and corrosion
Considerations & Trade-offs
- This kit is specific to Nucleus and Archimedes rifles, so it only applies if you already own one of those actions.
- It is a caliber-change component, not a complete rifle or barrel, so additional parts and fitting decisions may still be required for a full conversion.
- The 0.473" right-hand bolt head is caliber-specific, so buyers need to verify compatibility with their intended cartridge before ordering.
- The product is sold as a bolt head and extractor kit, which means it addresses one part of the conversion rather than the entire multi-caliber setup.
Suggested Comparisons
- Caliber-conversion rifle action components
- Replacement bolt heads and extractors
- Precision rifle barrel-change accessories
Suggested Accessories
- Barrel
- Gunsmithing tools
- Cleaning supplies
- Spare parts
Frequently Asked Questions
Which rifles is this bolt head and extractor kit made for?
It is made for American Rifle Company Nucleus and Archimedes rifles.
What does the 0.473" right-hand bolt head indicate?
The product title identifies this as a 0.473" right-hand bolt head and extractor. The source data does not provide additional fitment details beyond that.
Does this kit let me change calibers on my rifle?
Yes. The long description says the ARC Bolt Head and Extractors Kit is intended to help Nucleus and Archimedes owners set up their rifles as multi-caliber platforms, along with a barrel swap.
Do I need a gunsmith to use this kit?
The long description says the rifles were developed to accept Savage-style small-shank barrels so owners can easily mount their own barrels without needing a gunsmith. The kit is part of that caliber-change setup.
What material or finish information is provided for the bolt head?
The long description says each ARC Bolt Head is machined from hardened steel and treated with a DLC coating. No other material or finish details are provided.