3/1/2024 0 Comments Ak center rivet sizesOne thing you need to keep in mind is that it's important to support the receiver to keep it plumb and level when you press, or else it can (and often will) pop out of position and slide sideways. This is why I was thinking a round bar with a hardened steel insert. When it comes to dimensions, it's a good idea to err on the side of caution and use the biggest piece of steel you can get inside the barrel journal. I have worked on a few projects like that, and even if it can be extremely labor intensive it's still very satisfying. I like the idea, kinda like "the journey is the destination". The jaws are hardened so it may be difficult to make the dimple, but you could probably hog it out with a Dremel and a diamond bit, followed up with valve grinding compound and a rounded screw head held in a power drill. Not to mention that you can press all six rivets in about minute. They're less than $20 at Harbor Freight, and modifying the jaws is easier than designing and fabricating a fixture. Making a wooden prototype will help a lot when you figure the dimensions and shape.Īll in all, bolt cutters are a better solution. If you put some thought into the design, you may even be able to use it for the lower rivet. You only need to reach about 1 1/4" into the trunnion, so a piece of 3/4" round bar welded to a sturdy, "L" shaped piece could work. The diameter of the journal allows for a fairly large piece to be inserted, so a second support point at the back of the receiver might be overkill. It might be just as functional and probably more flexible to make a C-shaped buck. Of course, you will have to rivet the front trunnion first with a fixture like this, riveting the rear trunnion first would cause one of those dreaded "D'oh!" situations. You won't be able to press the third rivet though, unless you weld a piece to the bar and add a third support point next to the mag well. A hole with a piece of hardened steel (like a piece of a discarded drill bit) could work for that. The rivets need to be pressed into the recesses in the journal, so you would also need to add a "pad" that only hit the rivets. If so, you could use a round bar and two support blocks. I have worked on a few projects like that, and even if it can be extremely labor intensive it's still very satisfying.Ī rod through the whole receiver would work for the two rivets in the journal, but only if your press is wide enough to provide two support points. i feel it'd be pretty rad to have the information out there for anyone else that might want to challenge themselvesĬlick to expand.I like the idea, kinda like "the journey is the destination". I also want to document the process if anyone here would be interested. Looking at a finished project and knowing that as much as possible was done by myself is just a happy experience (or maybe a prideful one) that's what's engaging to me, finding an issue and solving it creatively. The fun comes from the process, the problem solving. If I wanted to be lazy, I could just have the guy who built my Egyptian Maadi just do it for me. I was hoping someone on here had made their own tools as well. but that might not be the best way, which is why i was looking for input. I think a more specific question i meant to ask is: how do you go about forming the bucking bar to press the front trunnion rivets? my idea was making a sort of tennon on some steel bar and running it through the entirety of the receiver and pressing from the outside (grade 8 bolt head with a dimple formed to the shape of a rivet head, place that under the press, make sure the head of the rivet is tight to the receiver to make sure the tail forms on the inside of the trunnion). I have a set of 24" bolt cutters that I'm debating making my own rivet jaws out of, i found a guide on here, and it doesnt seem that hard (yes, i have plenty of experience working with metal) that or making a bar to press the tails. That's what I'm asking advice on, there's not a huge amount of information available
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