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A couple weeks ago I was browsing sale items at Primary arms. They were advertising a radical firearms 18" SS AR assembled upper less bcg and ch for $179. I have never dealt with any of radicals stuff but knew they were budget offerings. I read quite a few reviews on this upper and it was hit and miss but I thought for that price I could scavenge it for parts. It arrived yesterday and at first glance seems to offer a lot for the money. A heavy profile ss 18" barrel with a 15" mlok ff hand guard, decent looking muzzle comp, the square mark on upper rec indicates it was made by bafe, thats nice! Putting a known quantity bcg in it the headspace passes although a bit tight on the go guage but that is a good thing. I should have probably left well enough alone and just shot it first to check for function and potential accuracy but that is not what happened. It is now on my bench tore completely down. This is what I found. The lo pro steel gb is the set screw type but no barrel dimple or loctite on the set screws. The barrel nut is steel but was on crazy tight. There was lube on rec threads. Here are my plans for for reassembly. Before barrel goes back on I will lap it some with jb bore paste. I will also square the front face of the receiver. The barrel will get dimpled for the gb sets screws as well. I will lube rec threads with aeroshell and torque barrel nut to 35-40 ft/lbs., set screws for gb will get loctited. Then, a range session will be in order to see if I got lucky, I have my fingers crossed.