Az.tech armory is the canadian dealer for those cx4 upgrade parts. Sierra papa is the company that makes them in the US.
http://sierrapapacx4.com/faq/
Reading through all the posts, I’m starting to see the benefits of the 9mm PCC; thanks!
Now, I really like the look of a Colt mag fed 9mm AR but don’t know where to look? I found the Quarter Circle 10’s but I understand there’s a bit of controversy surrounding their lowers now? Any other options? A PSA lower through IRunGuns?
Like the Angstadt but don’t like the angled mag (yeah, it’s all about looks, lol).
Thanks, y’all.
What controversy about Quarter Circle 10 lowers?
What controversy about Quarter Circle 10 lowers?
That was the start of the 80% lower classification, when the lab stared to questioning every lower's dimensions.What controversy about Quarter Circle 10 lowers?
Reading through all the posts, I’m starting to see the benefits of the 9mm PCC; thanks!
Now, I really like the look of a Colt mag fed 9mm AR but don’t know where to look? I found the Quarter Circle 10’s but I understand there’s a bit of controversy surrounding their lowers now? Any other options? A PSA lower through IRunGuns?
Like the Angstadt but don’t like the angled mag (yeah, it’s all about looks, lol).
Thanks, y’all.




























