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AR Tips - Some Tricks of the Trade

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Old 03-27-2012, 01:12 PM   #11
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Originally Posted by AgentTikki
Quick tip when installing your forward pivot pin....

To keep detents and springs from flying into oblivion, hold it down with a razor blade.
Then slide the pivot pin into place and allow the detent to pop into the groove of the pivot pin.

Also as added insurance, get a big plastic bag or cardboardbox and do you install inside it...just in case.
You know they make tools for that? A butter knife. Lol.
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Old 04-07-2012, 10:27 PM   #12
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i used a snow blower shear pin worked great
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Old 10-04-2015, 04:12 PM   #13
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Default Barrel aligning tip

When you are installing the barrel, the pin on it that goes into the slot in the upper receiver will have a little play in it. If you don't have a way to hold it centered, when you tighten the barrel nut, it will go to the shooters left a tiny bit, just enough to put the shooters sights about 2 1/2 to 3 inches off at 35 yards when he is trying to zero. To keep this from happening, the bigger companies have a high dollar alignment tool to hold the barrel centered while the nut is torqued down. My solution is to put a toothpick on each side of the pin, then snip it off before i tighten the barrel nut. It isn't perfect, but it keeps the front sight post reasonably in alignment. Nowadays with more and more AR's using a freefloat hand guard with the rail on top, that isn't so much of an issue anymore, but I thought I would share the tip with anyone using old style front sight post.
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Old 01-09-2016, 05:13 PM   #14
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Originally Posted by Sniper03 View Post

You mentioned some scratches on your receiver!
If your receiver is the standard dark anodizing here is how to touch up those scratches. It will not take care of any gouges but will do a great job on the cosmetic finish. We use this technique in our schools.

Using one of the Small Ronson type torches that you can get from Wal-Mart, Lowes, Home Depot or a hardware for around $26.00. They refill with a cigarette lighter refill canister and three or four various tips. We do not use any of the tips when performing the below operation. The one I have is made by Ronson. Here is how it goes:
1. Use Break and Parts Cleaner or Gun Scrubber on the area to remove all lube.
2. Use Birchwood Casey Aluma-Black Metal Finish
3. Use a Que-tip to apply when ready to touch up
4. Hold the torch aprox. 3" away from the Receiver *Do not over heat!
5. Warm the area with the torch while applying the Aluma-Black with the Que-
tip on the area.
6. Use the torch to reheat the area while applying the Aluma-Black and then
repeat this process until you are satisfied with the finish repair.
* Once again do not over heat the area.
But by heating the surface it opens up the pores in the metal and allows the
Aluma-Black to be absorbed by the T-6 aluminum.
7. Apply lube to the finished area since it will be totally absent of any lube
when you are finished.
Please PM me if you have any questions or are not clear on the procedures.

You can also use a hair blower on high and it will also work it takes a little longer but you do not over heat it.
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Old 12-19-2016, 03:11 AM   #15
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Is AlumaBlack the same as AluminumBlack
Handle the worst case, everything is a piece of cake.
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