Up for sale is a Mossberg 500 12GA pump action shotgun, set up in the sought-after trench gun style. This shotgun is in like new condition, showing virtually no signs of use—just as pictured. The Mossberg 500 is renowned for its reliability, making it a favorite for home defense, range days, or anyone looking to add a classic trench gun appearance to their collection.
 
The photos show the exact shotgun you will receive. As with all our listings, this firearm has been thoroughly function tested and inspected, but not live fired at our shop. If you have any questions about this Mossberg 500, don’t hesitate to get in touch!

Mossberg 500 12GA Trench Gun Style Pump Action Like New Condition

Name: Mossberg 500 12GA Trench Gun Style Pump Action Like New Condition
Brand: Mossberg

$449.00

Excluding Sales Tax

Quantity

Only 1 left in stock

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How to Purchase a Gun Online with Bay State Surplus

Easy & Convenient.

When buying a firearm from Bay State Surplus, you can pay for shipping or select 'store pickup' at checkout to skip the fee. Shipped firearms must go to a licensed FFL dealer with their consent and license copy. We offer Priority or Ground shipping. IT IS THE BUYERS RESPONSIBILITY TO CONFIRM THE FIREARM/ MAGAZINE IS IN STOCK & COMPLIANT IN THEIR STATE. Feel free to ask us any questions at baystatesurplus@gmail.com. Thank you for choosing Bay State Surplus!

Download the approved handgun roster to view which handguns are transferable in Massachusetts

The enforcement of the Long Gun Roster has been postponed until the roster is officially released, and the release date remains uncertain. As of writing this (11/7/2026), all long guns are still transferable in Massachusetts for now, provided they do not meet the NEW definition of an "Assault Style Firearm."

View Approved Roster

Assault Weapon Definition + FCAB Meeting Notes