Bolt PartsArea 419Sold by Brownells

Area 419

Bighorn Tl3/Origin Steel 5/16x24 Bolt Knob Adapter - Bighorn Tl3/Origin Bolt Knob Adapter Stainless Steel

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

Stainless Steel

Bolt handle adapter for Bighorn

Converts Your

Bolt to a standard male

Lathe Spun

Threaded to a Class 3

Allows Use

Of most aftermarket bolt knobs

Bolts Female

Female attachment points on shorter

$40.00
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SKU: 100036954

Overview

This stainless bolt handle adapter is designed to convert a bolt to a standard male thread, making it possible to use most aftermarket bolt knobs. It is intended for hunters and shooters working with newer actions that use female attachment points on a shorter handle. The adapter is lathe spun and threaded to a Class 3 fit, offering a practical way to update compatible bolt setups without changing the action itself. Made by Area 419, it serves as a straightforward interface piece for customizing bolt handle configuration.

Why Hunters Choose the Area 419

Converts Bolt

To a standard male thread

Works Most

Most aftermarket bolt knobs

Lathe Spun

Threaded to a Class 3

Stainless Steel

Construction

Bighorn Tl3

Origin bolt handles

Key Features

  • Stainless steel bolt handle adapter for Bighorn TL3/Origin actions.
  • Converts your bolt to a standard male thread.
  • Lathe spun and threaded to a Class 3 fit.
  • Allows use of most aftermarket bolt knobs.
  • Designed for bolts with female attachment points on shorter handles.

Best Used For

  • Hunters needing to adapt a Bighorn TL3 or Origin bolt for standard aftermarket bolt knobs
  • Rifle owners with shorter bolt handles and female attachment points seeking a threaded adapter
  • Users planning a bolt knob upgrade without changing the action itself
  • Precision rifle shooters wanting compatibility with most aftermarket bolt knobs
  • Builders working with Bighorn TL3/Origin actions and standard male-thread accessories

Specifications

Aftermarket CompatibilityMost aftermarket bolt knobs
CompatibilityBighorn TL3/Origin bolt handles
FitClass 3 fit
Manufacturing ProcessLathe spun
MaterialStainless steel
Thread Size5/16x24
UseBolt knob adapter

Pros

  • Converts the bolt to a standard male thread for broader knob compatibility
  • Works with most aftermarket bolt knobs
  • Lathe spun and threaded to a Class 3 fit
  • Stainless steel construction
  • Designed for Bighorn TL3 and Origin bolt handles

Considerations & Trade-offs

  • Designed specifically for Bighorn TL3/Origin bolt handles, so compatibility is narrower than a universal knob solution.
  • Requires a standard male-threaded setup and an aftermarket bolt knob; it is an adapter, not a complete bolt knob.
  • The Class 3 fit suggests a precise interface, which may leave less room for tolerance variation than looser-fit alternatives.
  • Its purpose is to convert newer female attachment points on shorter handles, so it addresses a specific setup change rather than a broad upgrade need.

Suggested Comparisons

  • Bolt knob adapters
  • Aftermarket bolt knobs
  • Bolt handle accessories
  • Rifle action accessories

Suggested Accessories

  • Bolt knob
  • Thread locker
  • Gunsmithing tools
  • Cleaning cloth

Frequently Asked Questions

What does this bolt knob adapter do?

It adapts your bolt to a standard male thread so you can use most aftermarket bolt knobs.

What thread size is this adapter for?

The product title identifies it as a 5/16x24 bolt knob adapter.

What material is the adapter made from?

The source data says it is stainless steel.

Why would a hunter need this adapter?

The description says it is intended for newer bolt designs where action makers use smaller stock in the bolt-making process and female attachment points on a shorter handle.

What fit is this adapter made to?

It is lathe spun and threaded to a Class 3 fit, according to the product description.