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Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter
$258.57
$179.99
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Boy Knee Sand Is's Review of Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine Conversion Adapter
This product is way overpriced for not being able to adjust the height of the ejector, and Stern customer support was useless.
I tried installing this in my setup that has a mil-spec upper and lower and even a Stern bolt but the ejector sat like 1/16" lower than it should in the bolt cutout. I tried reaching out to Stern to see if they had a solution and they responded at first but then ghosted me without a resolution.
Don't waste your money gambling on an expensive adapter that can easily be defeated by tolerance stacking. Just get a dedicated lower.
I tried installing this in my setup that has a mil-spec upper and lower and even a Stern bolt but the ejector sat like 1/16" lower than it should in the bolt cutout. I tried reaching out to Stern to see if they had a solution and they responded at first but then ghosted me without a resolution.
Don't waste your money gambling on an expensive adapter that can easily be defeated by tolerance stacking. Just get a dedicated lower.
Pros:
- quality machining
Cons:
- lacks adjustability
Best Used for:
- Paperweight
Would Recommend:
No