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Ar9 mag adaptor - Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter

by Liccian, Verified Owner from VA, United States Written on June 30, 2026
Review for Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter
Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter
Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter
$237.99 $179.99 Save 24%
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Liccian's Review of Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter

Installed this to a standard AR lower. Completer my AR9 build. Took it the the property and it worked flawlessly. Love the quality and functionality.
Pros:
  • fitment
Cons:
  • Can't easily swap
Best Used for:
  • MilSpec Lower
Would Recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2026-07-01 UTC.