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Browning A-Bolt and A-Bolt II vs AB3

Before ordering a barrel for your Browning A-Bolt, please be sure of your particular model.  We only have receiver thread specifications for the A-Bolt and A-Bolt II; NOT AB3!.

From Browning:

What is an A-Bolt? It could be an A-Bolt or an A-Bolt II or possibly even an AB3.

The A-Bolt was built in two main series. The original A-Bolt and the A-Bolt II. Both are very similar rifles and are considered part of a design family. The new AB3 — sometimes also referred to as an A-Bolt — is a different model and design. Accessories, such as bases and rings, magazines, etc. made for the original A-Bolt and A-Bolt II will not fit the AB3. All three of these designs are totally separate from the X-Bolt rifle as well. 

To identify which rifle you have, you will either need to 1) know the serial number or 2) answer a few questions about the rifle. In a few seconds, you can easily determine what Browning rifle it is.

By Serial Number.

Locate the serial number and identify the last three digits. They represent the following rifles:

  • 351 is an A-Bolt II or I (original A-Bolt)
  • 358 is the AB3
  • 354 is an X-Bolt

Please see this link for more information from Browning. 
A-Bolt, A-Bolt II or AB3. What's the Difference? - Browning

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