The Best AR9 Uppers in 2023

There are plenty of benefits to converting your AR with a 9mm upper receiver. The flexibility of PCCs has driven their popularity over the past 20 years, making them the go-to choice for those who want a multi-role pistol caliber rifle, and one of the main reasons I have one in my collection.

With all the options and benefits of building a pistol caliber carbine (PCC), it’s high time you get started. This article is part of our ongoing Guide to Everything AR.

By Kenzie Fitzpatrick

Kenzie Fitzpatrick is a professional 3-gun competitive shooter, an NRA-certified Pistol Instructor & Range Safety Officer, a certified AR-15 Armorer, an NROI-certified Chief Range Officer, & host of the Reticle Up Podcast.

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