Is the choke interchangeable? What choke come with it?

Hi Glen, this has a fixed cylinder bore, so it does not take choke tubes. Stay safe & have a great day!

it does not have interchangeable chokes it is a fixed cylinder bore (no choke) Breacher barrel Specifications for Mossberg 500 18.5 inch 12 gauge Breacher Barrel w/Bead Sight/Cylinder Bore: Manufacturer: Mossberg Color: Black Finish: Blued Barrel Length: 18.5 in Gauge: 12 Gun Make: Mossberg Gun Model: Mossberg Model 500, Mossberg Maverick 88 Additional Features: Cylinder Bore Choke Size Condition: New

Hi Glen and welcome back. No, this model is also a fixed cylinder bore. Most Security shotgun barrels are. Cheers, stay safe and enjoy!

2-3/4 and 3"? what does XBL stand for

Yes, this has a 3 inch chamber so it can safely handle both 2-3/4 inch and 3 inch shells. Looks like xbl stands for (extra Barrel). Buds is the only website that uses the xbl. Hope this helps.

Rick, yes, this barrel has a 3 inch Chamber and can fire 3 inch and the shorter 2 3/4 inch shells no worries. Same concept as a .357 Mag revolver being able to fire the shorter .38 Special cartridge. Extra Barrel (XBL) is a unique (Buds Listing). Mossberg's FLEX is a modular Stock configuration and has nothing to do with the barrel (https://www.mossberg.com/category/series/500/500-flex/). Cheers and stay safe!

How is the Stand Off Breacher attached to the barrel? Thank you.

Robert, the breacher is welded on and is part of the overall length of the barrel. It needs to be permanently attached to keep the length over 18" . Have a great day!

Robert, this is fixed or built onto the barrel Sir : youtube.com/watch?v=v5cDPDm9ryM

Robert, this is fixed or built onto the barrel Sir : https://www.youtube.com/watch?v=v5cDPDm9ryM

Does anyone know if this will fit my western field 12ga model 550?

Christopher, It should. Westernfield were Mossberg 500s. See following thread from Westernfield thread.---All Mossberg 500 parts will fit your gun as long as it's the same gauge and the action bars are the same. Some older guns were single bar forearms where all later guns are double.

Christopher - Western Field 550's were indeed made by Mossberg. All Mossberg 500 parts will fit your gun as long as it's the same gauge and the action bars are the same. Some older guns were single bar forearms where all later guns are double.

Christopher, it will fit fine. Gunparts Corp.'s (Numrich Arms) catalog #26 cross-reference does show the Western Field 550A to be the Mossberg 500A. (The "A" in Mossberg nomenclature simply denotes 12 gauge). ----- https://www.gunpartscorp.com/brand-cross-reference?page=17

western field models were made by different makers I would see if anyone you know has a Mossberg 500 and try his barrel on your gun to verify that a Mossberg 500 barrel will fit before ordering

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Mossberg 500XBL 12g 18" CB STANDOFF

Name: Mossberg 500XBL 12g 18" CB STANDOFF
Brand: Mossberg
SKU: 77814
Availability: OutOfStock
Rating: 5.00 (4 reviews)

Questions & Answers (4) Reviews 5 out of 5

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Extent your hunting season with a Mossberg accessory barrel. Offered in a wide variety of the most popular slug, turkey, security, and all-purpose configurations.

Product Information

Gauge/Caliber

12 Gauge

Length

18.5"

Model

500

Chokes

Cylinder Bore

Sights

Front Bead

Bore-Rifled

Smooth

Out of Stock

MFG: Mossberg

Model: 90018

Bud's Item Number: 77814

UPC: 015813900188

NOTIFY ME WHEN AVAILABLE

Retail Store Availability

In-Store Purchase Only
Lexington, KY	Not in store
Greenville, KY	Call for availability
Sevierville, TN	Call for availability

4 Reviews

Mossberg 500XBL 12g 18" CB STANDOFF

Extent your hunting season with a Mossberg accessory barrel. Offered in a wide variety of the most popular slug, turkey, security, and all-purpose configurations.

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4 Reviews. 5 out of 5 Stars!

5 Stars

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Write Review

James Scott C on 04/01/2025

Rating: 5 of 5 Stars!

This 18.5” Breacher Barrel fit my 1989 Mossberg 500 as easily as one would expect. Now I’ve got a 24” Slugger Barrel for hunting and this for home defense. Couldn’t be more pleased.

Andrew P on 11/24/2024

Rating: 5 of 5 Stars!

Bought this barrel to compliment the collection. Arrived when promised and in new condition.

Chase M on 04/13/2024

Rating: 5 of 5 Stars!

Had zero problems installing and looks amazing. Successfully turned my hunting shotgun into a home defense shotgun.

Philip C on 11/04/2021

Rating: 5 of 5 Stars!

Excellent fit & finish. Very happy with the purchase and timely delivery. Highly recommend.

Write Review

Questions & Answers

Q: Is the choke interchangeable? What choke come with it?
Answered

Asked 10/30/2024 12:02 by Glen G

A:

Hi Glen, this has a fixed cylinder bore, so it does not take choke tubes.
Stay safe & have a great day!
See 2 more answers |
Q: 2-3/4 and 3"?
what does XBL stand for
Answered

Asked 12/17/2021 06:19 by Rick T

A:

Yes, this has a 3 inch chamber so it can safely handle both 2-3/4 inch and 3 inch shells. Looks like xbl stands for (extra Barrel). Buds is the only website that uses the xbl. Hope this helps.
See 1 more answer |
Q: How is the Stand Off Breacher attached to the barrel?
Thank you.
Answered

Asked 10/12/2021 01:35 by Robert T B

A:

Robert, the breacher is welded on and is part of the overall length of the barrel. It needs to be permanently attached to keep the length over 18" . Have a great day!
See 3 more answers |
Q: Does anyone know if this will fit my western field 12ga model 550?
Answered

Asked 04/03/2019 07:09 by Christopher W

A:

Christopher, It should. Westernfield were Mossberg 500s. See following thread from Westernfield thread.---All Mossberg 500 parts will fit your gun as long as it's the same gauge and the action bars are the same. Some older guns were single bar forearms where all later guns are double.
See 3 more answers |

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Mossberg 500XBL 12g 18" CB STANDOFF