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Stern defense magwell adapter - Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter

by t, Verified Owner from WV, United States Written on August 1, 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
List: $237.99 $179.99 Save 24%
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t's Review of Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter

This is my third stern Glock magazine adapter. I don’t believe I have ever ran into a single problem with any of these adapters. They feed reliably in many different lowers. I have use many different sized magazine-counts and brands as well; KCI, Glock brand, ETS, P mags, etc. It runs them all, also works with binary trigger lowers I have so probably frt too
Would Recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2026-08-02 UTC.