+7 round Mag Extension for PSA 5.7 Rock

Excess Arms
$44.99 - $49.99
(45 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

  • 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.

  • 5
    7plus mag extension 57 rock

    Posted by Adolf V on Feb 8th 2025

    Very good quality and solid build anyone seeking quality parts and services see them asap ,fast shipping, packed well ?

  • 5
    +7 round extension for psa rock

    Posted by ChaeB on Jan 27th 2025

    Very nice product. Easy to install an runs flawlessly