MBX Competition Ready Magazines for STI/SVI & all 2011 Style Pistols!

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MBX Company Overview Video

The Next Generation of High Performance Competition Ready Magazines for STI/SVI & all 2011 Style Pistols:


    Made from Heat Treated 410 Stainless for Ultimate Durability.

    No spacer required for 9mm/.38 magazines.

    MBX Complete Tubes were designed to be Competition Ready with exclusive features to meet the highest demands for today's shooters.

    - All 126mm 9mm/.38 magazines hold 20-21 rounds.
    - All 126mm .40/10mm magazines hold 18-19 rounds.
    - All 126mm .45ACP magazines hold 16 rounds.
    - All 141.25mm 9mm/.38 magazines hold 23-24 rounds.
    - All 141.25mm .40 Cal/10mm magazines hold 20-21 rounds.
    - All 141.25mm .45ACP magazines hold 18 rounds.
    - All 155mm 9mm/.38 magazines hold 27 rounds.
    - All 171.25mm 9mm/.38 magazines hold 29-30 rounds.
    - All 171.25mm .40 Cal/10mm magazines hold 26 rounds.

    *Our tubes are designed exclusively to work with MBX Base Pads, Springs, and Followers. These tubes are not designed to work with other manufacturers' components.

    Witness holes on rear of tube to indicate round count for all tubes.

    MBX tube is designed to work with STI/SVI & all 2011 style pistol grips and mag catch height. Concerning the New STI grips due to the reworking on some models, MBX cannot guarantee our magazines will drop-free and the grip may need to be adjusted.

    Limited Time Offer: Clear Brushed Aluminum Basepad


Our goal is to produce and maintain the highest level of Competition Ready magazines and shooting products available for today's shooting enthusiast and any federal, state, or law enforcement agency.