Custom AR-15

[Jburke]

So I already have an AR, but a friend told me about a lower receiver he saw somewhere.  I'm just wondering what all I'd need to buy to build an AR?  Is it just a lower and upper receiver?  And how much should I expect to spend on all of the necessary parts?  Any suggestions on where to look online for parts?  Thanks for any advice guys.

[Straight Shooter]

I depends on what you start with... stripped lower, complete lower, complete lower w/o the stock, etc.  Since you already have an AR, you can just buy the complete upper of your choice.  Some uppers complete with the bolt carrier and charging handle... some don't.  If they don't, just swap out the bolt/carrier from your other upper.  Building an AR is like building a custom car... there are basic parts and hi-end parts (same thing with upper/lower receivers).  I have two DPMS builds.  They may not have the fit/finish of the higher-end rigs, but they're absolutely reliable and are as accurate as anything out there.

http://www.parts4ar15.com/

[Wenatcheejay]

It is kind of like saying, "I want to build a costum truck, so what do I need?"

It is more of, "what do I want?"

Here is a good place to get an idea.

http://www.midwayusa.com/static/ar-15.aspx

[thinkingman]

http://www.del-ton.com/AR_15_Rifle_Kits_20_s/58.htm

[deaddog]

Go get your self a copy of shotgun news, ton of ar stuff there, on the cheap too.

[huntnphool]

http://www.brownells.com/

[callonetta]

  +1

[chevysquid]

If it is truly going to be a custom build and built piece by piece, you will need:
Lower reciever
Lower reciever parts kit
Upper reciever
Bolt and carrier group
A barrel
Stock

You will have to decide what length barrel, flat top or carry handle upper, sights, etc, etc.

You can by a complete upper to drop onto a complete lower and be done if you wanted.
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[Jburke]

Ok, thanks guys.  Now does anyone know if the factory triggers on bushmasters would be adjustable?  Or would it be better to buy a good trigger and have it installed?

[deaddog]

Ok, thanks guys.  Now does anyone know if the factory triggers on bushmasters would be adjustable?  Or would it be better to buy a good trigger and have it installed?

stock bushy trigger arnt adjustable. Check out Chip MaCormick triggers, nice.

[Straight Shooter]

Ok, thanks guys.  Now does anyone know if the factory triggers on bushmasters would be adjustable?  Or would it be better to buy a good trigger and have it installed?

Just order a Timney #3 or #4 and do the install yourself... pretty darn easy.  I'd also add an Accu-Wedge, JP anti-walking pins and a winter trigger guard (I installed a Stark which is a grip/trigger guard in one unit).  Modding ARs is a never-ending process!!

[Jburke]

That's what I've noticed.  It's a good enough gun that it's worth it though.

[Jburke]

Hmm, Anyone know if there is a way to know the size of the hammer and trigger pins without having to take it apart and measure them myself?

[demontang]

The old colts where the ones with big pins.

[Straight Shooter]

The old colts where the ones with big pins.

 

Typically, Colts are "large" pins and all others are "small".  It's very easy to push/punch the pins out.  What is the make of your AR/lower?