• +7 round Mag Extension for PSA 5.7 Rock
  • +7 round Mag Extension for PSA 5.7 Rock
  • +7 round Mag Extension for PSA 5.7 Rock

    • +7 round Mag Extension for PSA 5.7 Rock

    $44.99
    (70 reviews) Write a Review
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    Product Description

    Add 7 rounds of capacity to your PSA 5.7 Rock Magazine. Machined from 6061 aluminum and finished with Cerakote or Black Hardcote Anodizing. Extended length Magazine Spring is wound from high strength Music Wire to ensure unparalleled reliability without needlessly increasing loading force.

    Magazine Extension includes:
     
    • Extended length magazine spring.
    • Set screws and Allen key.
    • Magazine Extension made from Billet Aluminum. 

     

    DISCLAIMER: This product is not manufactured, authorized, endorsed or warranted by Palmetto State Armory. Palmetto State Armory does not warrant or represent that this product is compatible with Palmetto State Armory pistols.

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    • 5
      PSA Rock extended magazine

      Posted by Diuck D R on Aug 11th 2026

      Works great. Wish the price was a little lower.

    • 5
      +7 round Mag Extension for PSA 5.7 Rock +7 round Mag Extension for PSA 5.7 Rock

      Posted by Mario on Jun 12th 2026

      Worked flawlessly looks beautiful

    • 5
      Easy Setup!

      Posted by N/A on Jun 10th 2026

      Comes with instructions! I would rather the screws & Allen key inside the bag though

    • 4
      Satisfied

      Posted by K.P on May 29th 2026

      Good product. Shipping time about a week depending on state

    • 4
      Love the look

      Posted by Dwight on May 5th 2026

      I like it i wish y'all would make a drum.

    • 5
      +7 Round Mag Extension

      Posted by Coach on Apr 1st 2026

      Super great product! I own multiple of these and they are top quality & easy to install. (I recommend loctite for the set screws)

    • 5
      Magazine extension for the rock 5.7

      Posted by David on Mar 20th 2026

      Absolutely a perfect addition. Superior quality, perfect machining actually made of aluminum!! I actually thought it was going to be polymer so I was pleasantly surprised. Superior product I will be buying more.!!!

    • 5
      +7 mag extention for psa rock 5.7

      Posted by Robert on Mar 18th 2026

      Fits like a glove came with everything that it requires, easy to install I would recommend it to anyone.

    • 5
      7 Round Mag that ROCKS!!

      Posted by Jim on Mar 7th 2026

      I got the 7 pound mag extension and it rocks. It's made of solid metal and fits like a glove. it took my 23 round pistol mag to 30 rounds. That probably makes it the highest capacity pistol mag that doesn't stick out to far. Professionally made, I highly advise them. After 27 years as a US Army Green Beret I know quality kit.