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I built all mine - ARs and M14s. The latter is the real gunsmithing required - not for the faint of heart. You will most def. need a lathe and a long study of Kuhn..bible.

There is nothing to ARs - I got my barrels from surplus USGI parts still in wick. All the headspacing is done from the factory so just matter of torquing the barrel to the upper. if using flats for uppers easily clamped w/ two chunks of aluminum flats in a vise. The rest is just installing the gas tubes and flash hider, handguards. The lower is even easier to put together. It is very satisfying to build your own stuff.

The M14 is not hard to build but it is very involved. YOu cannot wing it. Good luck.
 

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If anyone is wanting to build an M14 from scratch - you will need some essentials. A lathe, set of headspace gauges, clamping tools, torquing tools, knurling tools..the rest are just the usual parts.

You estimate the headspace as described in the Kuhn ...book. if it is lacking ...or too much you most def need a lathe to take off or add material but swagging. Other than timing the barrel for the proper torque draw...there is nothing else. If you time the barrel and receiver to the specs....the receiver and bolt will pass any damn tilt test. The fine-tune comes when there is some kind of discrepancy of the test. then you need to tweak.
I am sorry but there is not a whole lot of tech stuff into these rifles - a moron can put this together and shoot fine. With the AR platform, you can even be dumber and put one together.

This rant may anger a lot or few...but that is my opinion. Take care.
 

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You swage... basically push or squeeze the material. say you over-cut...and need material... well...you squeeze the barrel by rolls and turn the barrel until your material has pushed passed where you overcut. Is this clear?
 

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it is like knurling...but without the knurls. LOL! For the barrel shoulder - you swage to push the corner material out... By pushing it out, you have more meat to meet the receiver.
 
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