Glock 21/41 +4 Replacement Spring

(1 review)
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Replacement spring for high-capacity magazines with TTI Firepower Base Pads for Glock 21/41. This spring is for our Glock +4 .45 cal Magazine Extension.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to


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


  • 5

    Posted by Old Timer on May 5th 2022

    High quality. Has a light oil film on it in the package to keep it from rusting. Same spring that comes with the +4 mag pad kit. Get an extra or two. If you shoot a lot it will come in handy eventually. Install the new spring and keep shooting. Good job Taran.