+7 round Mag Extension for PSA 5.7 Rock

Excess Arms
$44.99 - $49.99
(47 reviews)
Current Stock:
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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.

Reviews

  • 5
    Psa rock +7 mag extension

    Posted by Ben d on Apr 6th 2025

    Great product easy install and works flawlessly.

  • 4
    PSA Rock 5.7 mag extender

    Posted by Andy on Mar 29th 2025

    Would have given 5* but I received the wrong color to what I ordered. That being said it looks and works great, plus it was super easy to install

  • 4
    5.7 Rock mag extension

    Posted by Dave M on Mar 25th 2025

    Easy to install. Looks great. Only reason I gave a 4 instead of a 5 is that I don't know yet how well it functions. I haven't had a chance to use it yet. I have heard from others though, that they work well.

  • 5
    Very nice addition

    Posted by Aaron M on Feb 23rd 2025

    Works very well!

  • 5
    Outstanding quality

    Posted by Kevin K on Feb 23rd 2025

    I have tried several other extensions for other guns and they are plastic crap...this not only works well, but actually makes the gun look cooler, like it is a factory fit.