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Canada Post Shipping Disclaimer: Canada Post has announced a nationwide strike starting Friday, November 15, 2024, at 12:01 AM EST, halting all operations. No mail or parcels will be processed, delivered, or accepted during the strike, which is beyond our control. In response, we have temporarily disabled Canada Post as a shipping option. We are continuing to fulfill orders through alternate carriers to ensure your packages are delivered. We’ll keep monitoring the situation and provide updates as needed. Thank you for your understanding and support. True North Arms (Last Update: 11/15/24)

Please note: If you are receiving a 'No Quotes Available' error message at checkout, it may be due to a firearm in your cart. Canada Post is the only carrier we have to deliver firearms to customers, and with their service temporarily disabled due to the current strike, this can result in checkout errors. To resolve this, please try removing the firearm from your cart and proceeding with the rest of your order. If the issue persists, please contact us at info@truenortharms.com for assistance. Thank you, TNA.

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  • S & J Hardware Mossberg 590/A1 12ga +2 Mag Tube Extension (18.5" BBL)

    • S & J Hardware Mossberg 590/A1 12ga +2 Mag Tube Extension (18.5" BBL)

    $112.88
    (No reviews yet) Write a Review
    SKU:
    688776MOS590-A1-MAG+2
    Shipping:
    Calculated at Checkout
    Made in Canada:
    Yes
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    Product Description

    S & J Hardware's Mossberg 590 A1 +2 Mag Extension. These mag extensions are CNC milled from solid steel.

    Features: Black Nitride finish for superior rust protection and increased surface hardness. Type 3 Mossberg Specific No-Jam Follower Extra Power 600,000 Cycle Count Spring

    You get: (1) Mag Tube Extension (1) 3 Point Sling Mount (1) Spring (1) Follower

    Compatible with: For Mossberg 590 and 590 A1 Shotguns with 5 Shot Magazine Tube (6 shot total capacity). For 12 Gauge Shotgun.

    Fits Mossberg:

    • 590
    • 535
    • 835

    Installation Tips: Magazine Length will Be a bit beyond flush with an 18 1/2″ Barrel. If your 590 has a (5) shot magazine tube. Trimming of magazine spring is required for proper fitting and performance.

    Product Videos

    Custom Field

    Exportable No
    Fits Lettermail (<20mm thick) No
    Made in Canada Yes
    Small, Loose Part No

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