Century Bulgarian AK 74 rivets backing out...

Status
Not open for further replies.
Quote:
Just because there are AKs that have shot thousands of rounds without a recoil buffer, it does not mean that an AK won't benefit from a recoil buffer. I am sure thousands of men have slept on a floor, but that does not guarantee that a bed would fail to give me a more comfortable night's sleep.

BSW, I never said that a recoil buffer would solve the OP's current problem. However, I did say that a buffer would help once he repaired his rifle.
If the AK needed a recoil buffer, Mr. K would have designed one into in. On most AKs, the bolt carrier doesn't even contact the rear trunion while firing. Adding a buffer to one of those AKs causes the bolt carrier to impact the buffer where it was before impacting nothing but air, and the force is then transferred to the trunion where it'll do more damage than if the buffer had never been there ("damage" used relatively, of course).

I suppose that adding a buffer to a gun that has bolt carrier-trunion contact would absorb some of the energy, but I'm still a fan of the buffer-less Kalashnikov, and I'm still a member of the "it would have been designed in" camp.

Recoil buffers can cause cycling issues in otherwise functional AK's. I think that if your gun is cycling so hard that you need to put padding between the BC and the trunnion, you have a problem that can't be fixed by an aftermarket part. YMMV
 
My Lancaster AK 74 with Bulgarian part s kit was one of those that had the rivets deforming. I was lucky to had mine fixed by them with their lifetime warranty. They paid for the shipping to and back. Took a month to get it bck in my hands. Good thing was, they replaced the rivets with stronger material and changed the US stainless barrel with original Bulgy chromed. After 700 rds after that no signs of backing out.
I was very encouraged to read this post, but still cautious. I have a Lancaster 5.45x39 rifle whose rear trunnion rivets sheared off completely. This happened over a year ago, and I waited after a cursory search about their troubles for the dust to settle. I'm bummed to read horror stories that people send their rifles in for repair and never see them again. I was saddened by this especially because I talked with Chet Durda a few times on the phone before I ordered my rifle and each time, my business questions evolved into long conversations and he seemed like an unusually likeable and insightful man.

When I first researched my specific problem -oversized gas ports- I just felt sorry for them. A huge company can take the loss involved with recalling hundreds (thousands?) of firearms and performing repairs that amount to 75% of the original construction labor and cost, but a small company can't. Another bummer is that this was an honest mistake that could happen to the best of companies. Just comparing Lancaster to Century AKs it's obvious that the Lancaster guys put much more care into producing a quality product. They didn't have sloppy builders and poor quality control, they got the math wrong at one crucial spot. It's happened to NASA more than once.

Anyway, wow long ago did you send yours in Nathan? My hope is that they've caught up with a backlog and are ready to help me out.

Nice to meet you fellas, thanks for reading.

Matt
 
Awesome update. I finished the work this weekend, works fine now.

There are a few things I noticed when working on the gun that most likely lead to the problem. the rear trunion has beveled holes, and they used flat rivets with no dimples on the receiver causing a space between the rivet, receiver, and trunion. I went ahead and dimpled the receiver and used the correct rivets. I kinda murdered the end of the long rivet, doesn't look pretty, but it gets the job done. I plan on going to use this in a defensive rifle class to see how well it will hold up.

also, the barrel may be the wrong twist rate for surplus ammo. Not positive but it keyholes sometimes at 100.

pics soon
 
Status
Not open for further replies.
Back
Top