Image unavailable
Nucleus And Archimedes Receiver Wrench
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$75.00
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100035977
Overview
Built for receiver work on short- and long-action Nucleus and Archimedes setups, this wrench is intended for use with either left- or right-hand receivers. It is made from steel and specified to be softer than the receiver to help protect the receiver during use. The hexagonal end accepts a 9/16-inch wrench, and the tool is about 8.5 inches overall. Proper orientation matters: the large lug must be positioned at 12 o’clock relative to the receiver, or damage to the guide rails may occur.
Why Hunters Choose the American Rifle Company
Compatible Both
Both short and long action
Works Either
Either left-hand or right-hand receiver
Steel Construction
A softer design intended to
Hexagonal End
Fits a 9/16 inch wrench
About 8.5
Inches overall length for practical
Key Features
- Designed for both short and long action Nucleus and Archimedes receivers.
- Compatible with left- or right-hand receiver configurations.
- Made from steel and intended to be softer than the receiver to help protect it.
- Overall length is approximately 8.5 inches.
- Hexagonal end fits a 9/16 inch wrench.
- Must be used with the large lug oriented at 12 o'clock to avoid receiver guide rail damage.
Best Used For
- Rifle owners servicing Nucleus or Archimedes receivers in short or long action configurations
- Left- or right-hand receiver users needing a dedicated wrench for compatible maintenance work
- Users who want a steel wrench designed to be softer than the receiver during use
- Bench work requiring a 9/16 inch wrench interface and careful lug orientation
- Owners following manufacturer guidance to avoid guide rail damage during receiver handling
Specifications
| Action Compatibility | Short action and long action |
|---|---|
| Compatible Receivers | Nucleus & Archimedes receivers |
| Design Note | Designed to be softer than the receiver to help protect the receiver |
| Hand Orientation | Left hand or right hand |
| Hex End Size | 9/16 inch wrench |
| Material | Steel |
| Orientation Requirement | Large lug oriented in the 12 o'clock direction relative to the receiver |
| Overall Length | About 8.5 inches |
| Warning | Damage to the receiver guide rails may result if inserted in an alternate orientation |
Pros
- Compatible with both short and long action Nucleus and Archimedes receivers
- Works with either left-hand or right-hand receiver configurations
- Steel construction with a softer design intended to protect the receiver
- Hexagonal end fits a 9/16 inch wrench for tool use
- About 8.5 inches overall length for practical handling
Considerations & Trade-offs
- Must be used with the large lug oriented at 12 o'clock relative to the receiver; alternate orientation can damage the receiver guide rails.
- Sized specifically for Nucleus and Archimedes receivers, so it is not a general-purpose receiver wrench.
- The hexagonal end fits a 9/16 inch wrench, so use depends on having the correct wrench on hand.
- Made from steel and intentionally softer than the receiver, which helps protect the receiver but also means the tool is designed as a sacrificial contact point.
Suggested Comparisons
- Receiver wrench
- Bolt-action rifle maintenance tool
- Rifle action assembly/disassembly tool
- Firearm gunsmithing tool
Suggested Accessories
- 9/16 inch wrench
- Gun cleaning mat
- Bench vise
- Rifle maintenance tools
Frequently Asked Questions
Which receivers is this wrench designed to fit?
It is designed for use with both short and long action Nucleus and Archimedes receivers, in either left-hand or right-hand configuration.
What is the wrench made from?
The product data says it is made from steel.
How long is the wrench?
The overall length is about 8.5 inches.
What size wrench is needed to use the hex end?
The hexagonal end fits a 9/16 inch wrench.
Is there a specific way it must be oriented during use?
Yes. The wrench must be used with the large lug oriented in the 12 o'clock direction relative to the receiver. The product data warns that inserting it in another orientation may damage the receiver guide rails.