Perfect Zero/Atlas Gunworks AlphaLock 2011 Basepad

CSRG, LLC
SKU:
PZ-3500
$39.99
(1 review)
Current Stock:

Add a CSRG 1911 Double Stack Follower & Spring Kit for 10% off!

The new Atlas Gunworks AlphaLock 2011 magazine basepads are a great upgrade for any magazines or magazine tubes you may have in need of some parts! For optimal capacity, use the 4mm basepads with 140mm/20 round tubes (if using Atlas tubes, you can use this with their 170mm/26 round tubes) and the 3mm basepads with 170mm/26 round Checkmate/Staccato tubes.

We have verified these will fit and function with: 

  • Atlas Gunworks
  • Checkmate/Staccato/Kimber 
  • Prodigy/Duramag 

Disclaimer: Due to tolerance stacking, we do not guarantee any 20 round/140mm magazines to pass the USPSA 141.25mm gauge. Verify your magazine length with a certified magazine gauge and fit the magazine as appropriate to be legal for your division. 

Reviews

  • 5
    Perfect Zero / Atlas Basepad

    Posted by Michael Flippo on May 13th 2026

    I initially ordered 6 and they were very easy to install and I really liked the clasp design. Note: I put these on 20 Round Checkmate mags with no issues.