[lakemoor]

Just want to say this is the most informative site for builders. Given me the confidence that I placed an order for my first build. Thanks

Some background info. I will be building an AK74 using a kit from K-Var. Have all compliance parts ordered. Probally go with an OOW receiver.

As for tools I have my drill press, x-y axis vise, Jokens air hammer rivetor (anyone have any experience with this?), grinder and Dremel.

My question is: Can you attach the front trunnion, while the barrel is in it, to the receiver using this air hammer rivetor?

Since this is my first build I did not want to remove the barrel from the trunnion and reattach as I do not have a press. If I had to I would use that clamping method described by hcpookie (the man).

Thanks all

 

[hotbarrel]

welcome aboard
great to hear from you and about your first build, I am shure it will come out great !!!

 

[mike26038]

No you can not rivet the trunnion with the bbl still in it.. some have tried without success..


Forgot to add, welcome to the board.. :welcome:

 

[Hoploholic]

The problem with riveting the trunion with the barrel in it, I think, is first getting the old rivets out without drilling into the barrel and the next problem is getting the rivets just the right length so they will buck against the barrel when you put the air hammer to them. If you want to go the way you are suggesting, just tap your holes and screw it in.

 

[lakemoor]

Thanks for the info.

I decided to remove the barrel and do it right. Got to go get me an I clamp and make a barrel pin remover (filed down machine bolt)

 

[mbadboyz]

Thanks for the info.

I decided to remove the barrel and do it right. Got to go get me an I clamp and make a barrel pin remover (filed down machine bolt)

I think your doing the right thing. There are lots of ways to remove the barrel pin. Pookies way is most affordable. Good luck! Post some pics.

 

[7.62x39]

I've never been crazy about the idea of using the barrel as a bucking bar.
Others have claimed to have done it successfully, but I've never seen one.

The problem I envision, would be that a rivet long enough to able to be bucked by the barrel, would be too long to fully seat before it started to pien.

Once the shank begins to swell (basically the first stage of piening) how do you get a tight fit between the rivet head and the receiver.

Using the correct swell neck type rivets (like 1-pats) would be out of the question.
Lastly possible barrel damage and the uncertainty of the hidden pien would be enough to deter me from using this method

 

[snazi]

I've wondered if you could make an anvil and temper it to a straw color and then create a socket in the rivet base that would expand in a blind hole. KInda like those concrete anchors. Super glue the anvil to the rivet and pound it down with a 4 pound hammer and punch. I have 2 AMD-65 kits and a 63 right now and plan on pulling the barrels myself. After seeing the converted steering wheel puller it's the easiest way sofar. I plan on building one of those rivet smoochers hcpookie has on his site for the front trunnion. I salvaged an old C band satellite dish and it had all kinds of stuff gun enthusists love including hardened stainless fine allthread and tensioners in 7/8". There's enough 2" angle in the base for 2 bending jigs. The upright support is just the right size for a riveter. Enough u channel to make a small arbor press.

 

[Grendeljaeger]

I salvaged an old C band satellite dish and it had all kinds of stuff gun enthusists love including hardened stainless fine allthread and tensioners in 7/8". There's enough 2" angle in the base for 2 bending jigs. The upright support is just the right size for a riveter. Enough u channel to make a small arbor press.

That's my kind of recycling!!!! :thumbup1: :thumbup1: :thumbup1: