Best price
$129.99at Brownells
checked Sep 30, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $129.99checked Sep 30, 2026 | Check store | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
About this part
The AR-15 9mm Adapter For 5.56 Lower Receiver is an accessory from ATI. One store lists it, Brownells at $129.99.
Specifications
- Manufacturer
- ATI
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Provides AR-15 9mm Conversion with No Modifications
The American Tactical 9mm Conversion Adapter fits any standard AR-15 5.56mm/.223 Lower Receiver, and converts it to 9mm with no modifications to your lower or magazine.
The conversion adapter features a built-in magazine release for Glock® style magazines, locks it into places with the standard AR-15 magazine catch, releases the same way as standard AR magazines, and has a bolt hold open feature that locks your bolt back after the last round.
- Works with Glock® style double stack magazines
- Machined from 6061-T6 aluminum
- Fits standard AR-15 5.56mm/.223 Rem lower receivers
- Comes with one 10-round ETS magazine
- Bolt hold open feature locks bolt back after the last round
Convert your AR-15 from 5.56mm/.223 Rem with the new American Tactical AR-15 9mm Adapter for 5.56 Receivers.
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