So I just got a shiny new MOEkov pattern PSAK. After unboxing it, I did an initial strip and cleaning on it and checked the fit and finish of things. However, I may have gotten a little too ambitious, as I removed the gas tube in the inspection process. Upon trying to reassemble the rifle, I could not get the gas tube lever to set. It appears that the tolerance is pretty tight on the brand new AK, and trying to force it just leverages the block out of alignment instead of settling into the correct place. Is there an easy way to resolve this at home, do I have to look at filing down the face of the cam that the gas tube lever turns, or is this a mail in job for the factory guys? Thanks for any advice. I’m looking forward to tuning this one up for a hog hunt this summer.
Line it up, press down on the lever, hit the rear of the tube with a hammer. It will force the tube down and the pressure on the lever will catch it. Did that a few times with mine and it got easier.
I had the same problem with my G5, the tolerances are extremely tight and the gas tube would not go back on when I put Magpul furniture on it.
I applied pressure to the tube by pushing it down gently onto a carpeted step to add a little leverage/fat body weight to it, gas tube installed easily.
I think that the fit issue is actually the Magpul furniture being a little too thick in the wrong places for the PSA guns.
I had this problem with my MOEKov Gen 2 as well. I lined up the flat spot in the lever and just had to really press down hard, in fact, I think I had to give the gas tube a bit of a whack with my closed fist to get it to seat. In hindsight, I think I would just put a drop of light gun oil on the flat spot of the lever and make sure you’re pushing the gas tube forward (away from the lever) toward the front sight while you push down at the same time. Yeah, its a tight fit, and actually took some finish off the flat spot of the locking lever but, it’s and AK and I’d rather it be tighter than looser.
I was attempting to Remove the gas tube as well and it wasn’t wanting to come out. Was installing the Midwest Industries KeyMod gas block system. Whatever you call it. Realized that they install them very tight. Just need to use some force and nothing bends or breaks so don’t be shy. Just atleast know what you’re doing before going into this on your own.
Had that problem with my GF3, until I switched to an Ultimak railed tube. Before that I had to put the piston in at the same time as the gas tube to force it into place.
What I did was take a 1” dowel about 6” long and placed it at a 45 degree angle against the angle on the tube closest to the lever and tapped it with a wooden mallet. It seated it enough so I could lock the lever down.
Thanks for the tips everyone, it’s all reassembled now.
I put a dot of CLP on the cam attached to the gas tube lever. I seated the gas tube. Then I used the cleaning kit to turn the gas tube lever downward to the point where it was pressing up against the ramped catch point on the gas tube itself. While maintaining a little pressure on the gas tube lever, I tapped on the rear portion of the gas tube (nearest the gas tube lever) using a rubber mallet. A few taps were enough to get it past the point where it was stuck before. It’s properly seated and held in by the cam/lever mechanism.
I appreciate the advice. Happy hunting everyone!
I had to make an account just to tell you I love you, ive been stuck on this for like 3 hours lmao
I was having the same problem, getting the gas block to seat in my Palmetto AKV-47. I HATE the idea of pounding on anything mechanical with a hammer, much less one of my guns. I examined the gas block seat carefully and realized that the groove on the back of the gas block was just not seating in the groove in the frame. I put a small amount of gun oil on both, and by pushing the gas block away from the muzzle, I was able to get it to seat. Then the lock closed easily. Hope this helps the next guy.
Wow! That was tight! I have a new GF5 and this thread was very helpful. I ended up putting a razor blade between the cam and gas block and this allowed the cam to slide up onto the ramp easy-peasy. This is after I had tried all the other stuff mentioned. I think an auto feeler gauge would probably work and be safer to use. My guess is that this rifle may never get cleaned again.
This is my first AK and I got the GF4 model with the JL Billet rail on it. After running some rounds through I wanted to disassemble and clean. The gas tube practically fell out when I popped the cam release, which was super easy to do. However, now the thing refuses to be reassembled. 
Have been searching forums and videos about it and I keep finding people using hammers and other tools to beat this part back into place. Please tell me there is a simpler way. I’ve pressed with all the force I am willing to try without actually breaking something. Even tried adding CLP to the parts. Nothing seems to work. It’s like a millimeter away from falling into place. It has some spring when pressed hard, but no dice. Any suggestions are welcome.
Have you adjusted the cam release? I find wiggling it helps.
Welcome to the PSA community 
@woelfe
Hi! Yes, I have tried wiggling it. I had the flat side straight up and down, which is the only way to get the tube to pass through. Then tried wiggling it while pressing the tube down. Tried shifting the tube as forward as it would go, pulling back and wiggling that.
The whole thing is comical considering just how easy it slipped out of its position when removing it.
Hi - thanks!
If it came out that easy it will go back. Sometimes they are hard going back in. Wiggle it like @GuitarGuy said and look at the front surface and make sure you hold the handle where it’s flat. Tape it if you have to. Sometimes the handle will make it roll past the flat spot.
Solved!!! Finally. Spent a lot of time trying to figure this out. It really was a puzzle for sure. Ended up taking it over to a friends house from work who got me into the AK platform. We spent a couple of hours passing it back and forth tinkering with it.
The secret was to start the gas tube on… then there was the tiniest bit of shift available in the LOWER handguard. When we shifted that forward a bit, the uppper part of the guard and the tube fell into place. Shifted it back and then flipped the cam pin effortlessly.
Crrrraaaaazzzzy… but glad I did not resort to the hammer! 
Thanks, Rufus! We did finally figure it out. The wiggling needed was with the lower part of the handguard. I had thought it was in solid, but friend of mine realized it had the tiniest gap and we could slightly shift that lower guard back and forth. When we shift it forward the gas tube and upper guard dropped right into place. Then just shift it back and flip the cam.