Thought some might find this interesting..... ARAK. That’s AR as in AR-15, plus AK as in AK-47. From Faxon Firearms, the ARAK-21 is a long-stroke gas piston upper receiver with a self-contained recoil system that fits on any standard AR lower receiver. As you’d expect, it shoots the AK-47’s 7.62×39 caliber, but also switches in about three minutes to 5.56 or 300 Blackout. And best of all, it works. more info here... Gear Review: Faxon Firearms ARAK-21 Upper Receiver - The Truth About Guns
My internet is sucking right now so can't even watch sec_monkey video but I will later. But, this sounds really good except for the price tag of $1200..was that just for the upper or did I read that wrong? But I want a long-stroke and have been giving thoughts to purchasing a PWS or a even a Israeli Galil ACE both are expensive guns so...so that is cheaper than both by a lot. It is on my research list now. Thank @OldDude49 !!!
Not real sure but think the price may include all 3 calibers 5.56, 7.62x39, and .300? did not research it very far just thought it was of interest...
Interesting, but. And you get only one barrel with the basic setup. (Thinking back to when I looked at it, barrels are 200 a pop.) That said, I don't buy new models of cars the first year they come out, I have a built in sales resistance to hype.
from the review plus the article problems have been reported with certain types of ammo ya have to swap out parts fer 5.56, 7.62x39, plus .300 ACC