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