Skip to comments.AR-15 - Build; Need some upper advice
Posted on 03/22/2011 3:04:37 PM PDT by Chasaway
I've got the lower. Now I want to really work up an AR that presents as I want it. Some pics that are close to what I'm thinking are included.
Where do I go to get the stuff I need to finish this rifle as I like....but spending as little as I can? Not so much the barrels as the furniture...
Some links/resources would be terrific!
What I'm trying to do is build a custom AR with configurations similar to the pics attached. Primarily the forends and front part of the furniture. Including a bipod.
AR 15.com is a good place to start.
I go to CombatHunting.com. Here is their AR-15 M16 M4 page.
Good prices. Out the door the day you order.
The most major feature you want (the 1-8 twist barrel) is invisible. The one in 8 twist lets you shoot the 80 grain bullets and that opens the door to a wider world. A 223 with 80 grain bullets can kill game animals and hit targets 1000 meters away; the standard 55-gr bullets can’t.
Blackthorne Products has some remarkably priced AR kits in the bull barrel, free floated config you are looking for.
I don’t like ‘big’ scopes on the AR type rifles.
I prefer something like the ACOG, but I guess it’s all about what you are using the rifle for. For anything out far enough to need a scope that big, I’d be using a rifle that begins with a ‘7.62x’.(preferably a .308)
Thanks for what is bound to be a very cool thread.
The AR15 build it yourself forum on Arfcom...
Oh, and I forgot to mention the Ar15.com Equipment Exchange.
Anything can be shipped EXCEPT a lower receiver or full rifle.
AIM surplus via AR-15.com
Built several AR’s with stuff I bought from them.
Highly recommended source.
Got to tell you, BE CAREFUL ABOUT BARRELS AND BOLTS !!!
Make sure that you headspace it properly. Get the headspacing tool, It’s worth every cent.
Bolts and berrels vary and you need to be sure the headspacing is correct. If you’re not comfortable doing this take it to a gunsmith, or buy a matched set bolt/barrel
If that's what you want, I'd get an assembled AR upper from one of the better shops that offer them after shopping around. I'm not sure if by 'spending as little as I can' means 'I want it cheap' or 'I want to save some money even though I'm about to pay thousands'. Looks to me like at least two of those rifles have NightForce scopes on them, and you're aware that the price on these starts around $2,000 or more?
The stocks in the pictures include a standard M4 4-position, an A2 stock, and in the first and last pics what appears to be a CAA and an older MagPul PRS. They're all using some sort of free floating match tube forearm, a couple of them being CMMG.
The solution that Wendy mentions would mean you're going to need a specially throated match barrel with a lot of freebore for 80gr, and then a you're pretty much limited to shooting that specific manufacturer's 80gr cartridge exclusively. An 80gr 5.56mm round may or may not fit a standard AR magazine due to length, and as a result some match and varmint shooters using loads like these manually insert one round at a time through the ejection port and snap the bolt closed with the bolt release. Personally, I think anyone wanting to go down this path should stop screwing around with 5.56mm and just step up to an AR-10 in 7.62 which would make their lives and personal economy easier.
Jams are your biggest issue once built.
First , try to get only Magpul magazines and nothing over 30 round capacity.Buy lots of them but just not over 30 unless you get the 100 shot barrel drums.
Second I found that depending on cheap or expensive ammo, I have two configurations.
One has a special heavier spring and a DPMS stock bolt
and the other is a lighter spring and an M16 bolt which has a slight bit more metal on it to make it heavier.
Switching between these for tournament and or just shooting cheapo ammo has completely eliminated jams.
Agree...bookmarked for later read. Always something new to learn here.
Dude!! You need to decide what you want. You could just buy a Bushmaster upper from www.bushmaster.com or www.impact.com. or www.classicarms.com and look at Rockpoint Guns.
Also you have to decide what you want to use the weapon for; as in M-4 shorty adjustable stock for house entry and clearing. A target 16-20 inch barrel open combat or a bull barrel varmint style for mid range sniping. Once you know what you want it will be easier to build an upper.
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