[yosuthnmasa]

A few months back I got into contact with Hotbarrel about a bucking bar that could be used for the rivets on my receiver. Within a few days, he sent it out and before too long I was able to successfuly use it on an ACE blank and CFS AMD-63 kit. I have never used any special made jigs or bars in the past and this was my first hack at it. Hotbarrels jig was exceptionally easy to use and was very effective. I was able to smash all of the trunnion rivets using his jig with no glitches. The rest were either hammered or pressed down directly with my press. Just wanted to give a positive review of his jig and thank him for the help. :thankyou:

Pictures of the jig can be found in this thread at the bottom links:

http://www.gunco.net/forums/showthread.php?t=997&highlight=bucking+bar*

 

[hotbarrel]

thank you for the kind words buddy. I am very happy that I could help you out.

 

[mike26038]

Did you use a air hammer, or manual hammer with the bucking bar??

 

[yosuthnmasa]

I used a 20 ton Harbor Freight press. The bar has an area on it where you use the ram of the press to push down on it. On the end of the bar is a small pin that is pressed into the rivet. It smashes them really fast.

 

[mike26038]

Man we need some pics of this being used.. Please...

Sounds like ti might be better than using Plinker's jig.. His is freat, but is a ***** to set everything up..

 

[yosuthnmasa]

I'' take some pictures of it in action here in a minute. This thing is so easy to set up and use. And basically all your out is the cost of materials on this one.

edit: The pictures simulate how I would smash the trunnion rivets with the bucking bar (of course you would have the trunnion in the receiver). As seen in the picture there are 2 small pins that I use in the end of the bar. At the start of smashing the rivet I use the shorter one, and as it gets smaller in length I switch to the longer one. On top of the bar, there is a small hole that I use to push the pin out when I need to change sizes. I cut a Craftsman punch into a few pieces and ground down the sharp edges. Underneath the trunnion is a flat piece of metal that I have a piece of a hole cut into that cups the head of the rivet so that it doesn't smash it. I used a ball mill end drill bit to mimmick the head of the rivet. The flat piece of metal is a smaller piece than what I normally use. In the pictures I come in throught the front of the trunnion, but it is just as easy to come through the top. I smash the rivets from both ends. This bucking bar takes care of all the front trunnion rivets. For the rear, I either use a hammer or the press and smash them directly down on the outside of the receiver.

 

[yosuthnmasa]

And some more:

 

[hotbarrel]

boy I am very happy to hear your bar is working as well for you as it works for me.