Recommendations needed on a 18" build

[chuy]

OK. So i am really really excited about this build.

Thinking of this as my build.. (interject when I can do better)

UPPER:
Alexander Arms or Satern(barrels arent being made until october?) 18in 1:7.5 with matching BCG stainless, fluted,
Mega monolithic railed rifle length upper (if the barrel is rifle length) ...maybe not..may go the VLTOR route
Piston gas block (do i really need this??i think so...
GIssell 3lb upgrade

Looking for a super accurate hunting/shooting barrel that can really reach out and touch something past 500 yards.

[chuy]

VLTOR MUR-1A upper on the way!!

[Schwag173]

OK. So i am really really excited about this build.

Thinking of this as my build..
Piston gas block (do i really need this??i think so...
GIssell 3lb upgrade
Looking for a super accurate hunting/shooting barrel that can really reach out and touch something past 500 yards.

The piston is unnecessary as long as you are willing and able to clean your rifle once in a while. Some like the piston for greater reliability under "Chinese wave attack" conditions, but I've yet to encounter any of those here in Eastern Washington. Pistons add weight to the rifle. It would make cleaning easier, for sure, but some have argued on this site that pistons detract from competition-level accuracy which means you if you are serious about the 500+ yard thing. I have nothing against pistons, but believe they are unnecessary for 98% of us out here. Just my $0.02 ...

[Variable]

The piston is unnecessary as long as you are willing and able to clean your rifle once in a while. Some like the piston for greater reliability under "Chinese wave attack" conditions, but I've yet to encounter any of those here in Eastern Washington. Pistons add weight to the rifle. It would make cleaning easier, for sure, but some have argued on this site that pistons detract from competition-level accuracy which means you if you are serious about the 500+ yard thing. I have nothing against pistons, but believe they are unnecessary for 98% of us out here. Just my $0.02 ...

Even Chinese wave attacks can be handled with a DI gun if it's made right.
http://www.youtube.com/watch?v=Kzfm4...e_gdata_player

If you are somehow still miraculously alive after firing the first 26 magazines at full cyclic rate with no cooldowns, then you are definitely tough enough to take them on with your nifty new manually operated, magfed, single shot. If they get real close then take them out with your bitchin' new flaming AXE!!! Mwuhahahahahaa!!!

[Cliff]

Chuy..... I've been sitting on a Satern, match, SS, fluted barrel for about a year now. I thought I's be doing a fourth build, but simply don't have the time to do it. In short, I have a Satern for sale. Lemme know If you're interested. I'm even here in Texas (Plano). I joined the forum just to post, so email or text if interested.

Cliff Griffin
972.415.3363
cliffgriffin@yahoo.com

[Cliff]

I have the Osprey piston system too if interested..

CG

[chuy]

MOVING RIGHT ALONG

VLTOR MUR-1A has arrived.

[ricsmall]

looks good chuy! have patience on the barrel/bolt, everyone is taking a while, just part of the process.

[chuy]

I was bad today....I went to the store during lunch and bought a Magpul prs stock, then went back to work and left early to but a timney 3lb (I prefer ss)

[LRRPF52]

Looks like you have more of a precision-target 18" rifle coming together, considering the PRS, which weighs more than any other AR15 stock I have felt, minus a lead-filled DCM A2 stock. The MUR is also a little beefier, supoorting heavier barrel profiles better than a standard upper receiver.

That pushes you away from going with a "piston-operated" system, as there is more accuracy potential in a Direct Impingement gun all day long.

I am also of the camp that states without reservation that Direct Impingement guns are more reliable than op-rod driven guns, based on my experiences with both types of systems over the past 24 years. They also have the smoothest recoil impulse, best balance, and are less maintenance intensive, since your piston is housed in the bolt carrier-the bolt itself in the DI gun. I've spent way more time having to clean say an FN/FAL, SAW, M14, SIG 551/552, AK, and other op-rod driven operating systems, in addition to cleaning the bolt carrier and fire control housing of those weapons when in field conditions. Neglect them, and they rust up on you, then watch what happens to reliability and longevity of the weapon.

I don't believe in cleaning AR15's anyway...just adding more lube, maybe scraping the bolt face with a toothbrush, and if you have a match barrel, use carbon remover on it.

You just need a match barrel/bolt combo, a rifle-length handguard or longer, an M16-weight bolt carrier and necessary BCG parts, a quality optic mount, quality glass, a bipod, mags, and ammo.