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Let's build the OB AR15

Posted on 2/14/18 at 2:04 pm
Posted by Clyde Tipton
Planet Earth
Member since Dec 2007
38857 posts
Posted on 2/14/18 at 2:04 pm
I know we have an "official AR" thread. If this has been done, link me, I'd like to read it. Short of that, here is the premise.

The trigger thread got me interested in putting together another AR. I've only purchased complete AR's and I'd like to try to piece one together as I hear it can be more rewarding and lower the overall cost. Please make recommendations including links for the best bang for the buck parts to build a quality AR at a value price. Up vote good deals/parts and down vote bad deals or parts you think there may be better options for.

I'll reserve the second post to begin linking all of the parts as we agree on what constitutes the official OB AR.

Make sense? Any questions?

ETA: I think it would be understood, but Milspec so we are on the same page.
This post was edited on 2/14/18 at 2:06 pm
Posted by Clyde Tipton
Planet Earth
Member since Dec 2007
38857 posts
Posted on 2/14/18 at 2:04 pm to
Parts list for the official OB AR:

This post was edited on 2/14/18 at 2:08 pm
Posted by Chad504boy
4 posts
Member since Feb 2005
167018 posts
Posted on 2/14/18 at 2:09 pm to
quote:

Any questions?


why is the 699 page thread on ar and ar building not good enough for you?
Posted by bbvdd
Memphis, TN
Member since Jun 2009
25174 posts
Posted on 2/14/18 at 2:14 pm to
I have no experience with them but have read a bunch of glowing reviews:

Rosco 16"

I have an 80% lower on the last one that I built. After some issues with the barrel I have really become a fan:

I have several Midwest Industries handguards and really like them.
This one is on sale:

10.5" m-lok for $134

I like Magpul furniture:

Magpul ACS


Don't have one of these but they look pretty cool:

MFT Minimalist Stock
This post was edited on 2/14/18 at 2:21 pm
Posted by lsugrad35
Jambalaya capital of the world
Member since Feb 2007
3200 posts
Posted on 2/14/18 at 2:14 pm to
I've been wanting to build one, but it seems like a daunting task to me for some reason. If it can be screwed up I'd certainly screw it up. Would be cool to do an OB "group" build. I support.
Posted by Carson123987
Middle Court at the Rec
Member since Jul 2011
66514 posts
Posted on 2/14/18 at 2:15 pm to
I'll go first. Noveske Chrome Lined barrel
Posted by BACONisMEATcandy
Member since Dec 2007
46644 posts
Posted on 2/14/18 at 2:27 pm to
quote:

lower the overall cost.


Not even close to true

Assuming we are going to chamber in 5.56, here is the barrel:

LINK /
Posted by jdavid1
Member since Jan 2014
2470 posts
Posted on 2/14/18 at 2:29 pm to
I thought Sulzer was the official AR of the OB.
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
57514 posts
Posted on 2/14/18 at 2:44 pm to
quote:

I'd like to try to piece one together as I hear it can be more rewarding and lower the overall cost.
well that was the purpose of the first AR thread.
Posted by Ace Midnight
Between sanity and madness
Member since Dec 2006
89765 posts
Posted on 2/14/18 at 2:49 pm to
quote:

I hear it can be more rewarding


Absolutely.

quote:

lower the overall cost.


Meh. If you do it right, and many times, you're going to get exactly what you want and not pay for a bunch of parts you will throw/give away. However, it's a buyers' market for ARs, so from a pure cost standpoint, I would say you have to build 5 or 6 to break even - just on the tools, unless you already have everything or borrow from family and friends.
Posted by Clames
Member since Oct 2010
16719 posts
Posted on 2/14/18 at 2:54 pm to
OB AR? Yeti sticker on the stock and truck nuts engraved on the lower.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 2/14/18 at 2:57 pm to
Tikka make ARs yet?
Posted by m2pro
Member since Nov 2008
28669 posts
Posted on 2/14/18 at 3:57 pm to
Because this is what we'll end up with when we're done.

Posted by finchmeister08
Member since Mar 2011
35939 posts
Posted on 2/14/18 at 4:50 pm to
i've got an even better question.

WHO'S PAYING FOR ALL THIS?

Posted by Bamadiver
Member since Jun 2014
3242 posts
Posted on 2/15/18 at 7:46 am to
ADM UIC upper/lower are the basis for my current dream build

ADM UIC Lower Receiver
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