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Posted: 1/17/2016 9:22:54 PM EDT
| When installing the lpk do you guys use any typer of lubricant for the parts or do you just instal the parts as they come? |
| Clean everything, then a light coat of oil on each part as its added to the assembly. All moving parts need lubrication. I like Slip 2000 gun oil, but Mobil 1 10W-30 is almost as good and much cheaper. Recently, I installed some titanium takedown and pivot pins in my ultralight 6.8 build. It turned out I should have polished them before installing. The receivers are a very tight fit with one another and the slightly rough pins are difficult to move in and out of the holes. - CW |
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I did my first build dry. Two things I noticed:
The bolt catch roll pin was a bugger to get in. Everything worked "hard". Pivot pin and takedown pin were really stiff, selector was not smooth, etc. Every build since: I use clp on the bolt catch roll pin...goes in like butter I use clp in every detent hole. I use clp on the slots in takedown and pivot pins, and the selector. I use a special grease on the contact points of the FCG. After each of these builds, every works smooth as butter. None of it is necessary, but it all makes my AR's feel/run smooth as silk from the first round. |
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Everyone seems to be using oil on their parts, but no one seems to realize that once these parts are inserted into their collective recesses in the lower receiver, access to them for future lubrication is neither easy or practical. I put a dab of grease in the recesses, and first clean off the pins with an emery cloth and then oil them before I install them. I've built almost a dozen ARs and only had one issue once. That was a bad spring in the bolt release recess which turned out to be a bad spring. With all the precautions to prevent scratches on the surface of the lower receiver, it took me almost an hour to remove the roll pin, inspect the assembly, and put it back together. It's MUCH easier to over-lube the parts BEFORE assembly.
Just call me "been there; done that" Rusty Musket |
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For shipping and storage, some parts can be coated with corrosion inhibitors by the mfgr.
I clean the parts in mineral spirits. Once dry, I inspect the kit to insure I received everything that I was supposed to and that all the parts appear serviceable. Hammer and trigger pins get a light coating of grease. Detents, springs ect, get a light application of oil. |
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