Upper build questions?
Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > Upper build questions?

Reply
 
LinkBack Thread Tools Display Modes
Old 10-17-2010, 01:55 PM   #1
Feedback Score: 0 reviews
 
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 34 Times on 29 Posts

Default Upper build questions?

Ok So I am wanting to try building an upper.

I just want one that will chew up blasting fodder doesn't have to look great.

Now to the questions.

1. On the 16" barrel I thought 18" was the shortest barrel you could have? Cause I don't want one of them stupid looking bloop tubes on the front maybe just a std M-16a2 type.


2. For a range fodder gun would you go with 16 or 18"?

3. what tools am I going to need to purchas?

__________________
cpttango30 is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 10-17-2010, 03:07 PM   #2
Feedback Score: 0 reviews
 
Join Date: May 2007
Location: Longmont
Posts: 426
Default

18" is a shotgun barrel. A rifle may have a barrel of 16" and be legal as long as the overall length of the firearm is 26".

Build a 16" and blast away !

__________________
Dgunsmith is offline  
 
Reply With Quote
Old 10-17-2010, 03:20 PM   #3
Feedback Score: 0 reviews
 
mjkeat's Avatar
 
Join Date: Jul 2010
Location: Wichita,Kansas
Posts: 4,026
Liked 8 Times on 8 Posts

Default

18" is the minimum for shotgun barrels and an overal length of 16" for a rifle barrel. You can have a 12.5" barrel w/ a permenantly attached flash hider measuring 3.5". As long as the overall length of the barrel is 16" or greater you dont need to mess w/ all the paperwork.

"one of them stupid looking bloop tubes" - please explain

__________________
mjkeat is offline  
 
Reply With Quote
Old 10-17-2010, 04:12 PM   #4
Feedback Score: 0 reviews
 
jeepcreep927's Avatar
 
Join Date: Oct 2007
Location: Newport,Vermont
Posts: 1,110
Default

Tango-
I'd go with a 16". You're not losing anything between that and an 18".

If you're starting with a barrel with extension installed, a stripped upper and a box of parts, the only tools (other than a poundy thingy, which I know you have) you would need are a barrel nut wrench and a set of roll pin punches for the forward assist retaining pin and gas tube retaining pin. Though if you're careful you can do it with a drift punch.

Good luck.

__________________

"People live too long, dogs don't live long enough" - FTF Member-

jeepcreep927 is offline  
 
Reply With Quote
Old 10-17-2010, 04:47 PM   #5
Feedback Score: 0 reviews
 
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 34 Times on 29 Posts

Default

Ok The bloop tube thing.

Noveske Krink KX3 Flash Suppressor with Pig

That thing I don't want on my AR.

So I want a flat top with Picatinny mountable sights.


Here is what I am looking for as of right now.

A2 flash hider threaded 1/2x28 [SAFH510] - $9.95 : Spikes Tactical

M4 Flat Top upper (Cosmetic Blem) [SFT50M4-B] - $60.00 : Spikes Tactical

Mil-Spec 303 Stainless Steel Gas Tube [SUGT00x] - $12.95 : Spikes Tactical

Spike's Tactical HPT/MPI M16 BCG (223/5.56) [ST5BG01] - $149.95 : Spikes Tactical

DPMS Barrel AR-15 223 Remington .920" Muzzle Diameter 1 in 9" Twist 16" Stainless Steel with Aluminum Gas Block - MidwayUSA

__________________
cpttango30 is offline  
 
Reply With Quote
Old 10-17-2010, 05:28 PM   #6
Feedback Score: 0 reviews
 
jeepcreep927's Avatar
 
Join Date: Oct 2007
Location: Newport,Vermont
Posts: 1,110
Default

What made you decide on a heavy barrel, just out of curiosity?

__________________

"People live too long, dogs don't live long enough" - FTF Member-

jeepcreep927 is offline  
 
Reply With Quote
Old 10-17-2010, 06:35 PM   #7
Feedback Score: 0 reviews
 
Highpower's Avatar
 
Join Date: Oct 2009
Location: Upper Mississippi Valley
Posts: 1,547
Liked 356 Times on 200 Posts
Likes Given: 292

Default

Quote:
Originally Posted by jeepcreep927 View Post
What made you decide on a heavy barrel, just out of curiosity?
Because if it won't shoot bug holes, Tango want's no part of it....

AHEM..... Bloop tube:
A piece of pipe that clamps to the barrel to allow you to move your front sight forward, in order to increase your sight radius.



p.s.
Tango, you linked to an un-threaded bull barrel. Why the flash hider?
__________________

Last edited by Highpower; 10-17-2010 at 06:44 PM. Reason: post script
Highpower is offline  
 
Reply With Quote
Old 10-17-2010, 08:02 PM   #8
Feedback Score: 0 reviews
 
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 34 Times on 29 Posts

Default

oops I forgot that it was unthreaded. I was looking a a few different barrels. all the threaded ones had the stupid triangle front sight and not what I wanted. I think I may just get a 16" and put the low profile picatinny gas block on it.

As far as the bloop tube what do you call the stupid looking thing I posted.

I am wanting to just get a cheaper upper for blasting at dirt clods with my kids and save the nice accurate one for ground hogs and long range zombie plinking.

What are a decent set if flip up sights with wouldn't break the bank? I was thinking a red dot but I think one needs to be open sights.

__________________
cpttango30 is offline  
 
Reply With Quote
Old 10-17-2010, 08:30 PM   #9
Feedback Score: 0 reviews
 
Highpower's Avatar
 
Join Date: Oct 2009
Location: Upper Mississippi Valley
Posts: 1,547
Liked 356 Times on 200 Posts
Likes Given: 292

Default

Ok, It dawned on afterward you were looking to make legal barrel length - but you're good to go with a 16. The Noveske is an over-sized flash suppressor for really short barrels. Black helicopter stuff.
(I could use one for my 10" .223 Contender though.)

I don't use any of the flip-up sights, so I'll let those that do own them answer that one....

As far as tools go, I use an upper receiver holding block for barrel work, but you can get away with a set of barrel blocks that hold the barrel in a bench vice if you are careful not to twist the receiver when torquing it down.
A barrel nut wrench or strap depending on your forearm type, and some pin punches should just about cover it.

Of course you'll have to post pics of your build ya know.

__________________
Highpower is offline  
 
Reply With Quote
Old 10-17-2010, 09:25 PM   #10
Feedback Score: 0 reviews
 
Gatekeeper's Avatar
 
Join Date: Mar 2009
Location: Uniontown,PA
Posts: 3,710
Liked 8 Times on 6 Posts

Default

Quote:
Originally Posted by cpttango30 View Post
oops I forgot that it was unthreaded. I was looking a a few different barrels. all the threaded ones had the stupid triangle front sight and not what I wanted. I think I may just get a 16" and put the low profile picatinny gas block on it.

As far as the bloop tube what do you call the stupid looking thing I posted.

I am wanting to just get a cheaper upper for blasting at dirt clods with my kids and save the nice accurate one for ground hogs and long range zombie plinking.

What are a decent set if flip up sights with wouldn't break the bank? I was thinking a red dot but I think one needs to be open sights.
Just a little FYI. If you find a good deal on a barrel with a standard FSB already installed. You can always chop the sight tower off and do a little grinding with a dremel tool to make your own lo-pro gas block to fit under a freefloat rail.
All the fitting work is already done and it keeps the factory taper pins that are a bitch to get out and aren't going anywhere....ever
Thats what I did with my M&P, it was pretty easy.


For flip ups, the magpul MBUS polymer's are hard to beat for the price. I use a rear one and its very sturdy. I don't use the flip up front, I like the fixed picatinney mounted tower, but alot of guys run the Magpul polymer front and I haven't heard anything bad, I think Lon has 'em IIRC.
__________________

----------Gate
______________________________________________
Hellfire, Doom, Watch the hatred spin
Beyond the speed of sound---
Fire it up, Let the engines roll
It's time to burn it down

Gatekeeper is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
AR build questions rob_6095 AR-15 Discussion 6 09-27-2010 05:08 AM
New Upper build on the way:) pagj17 AR-15 Discussion 22 07-18-2010 07:25 PM
Planning an upper build... .204 Ruger? PTsouthpaw AR-15 Discussion 0 12-24-2009 06:49 PM
New to upper build. Trying to find a barrel longrangejones AR-15 Discussion 5 09-03-2009 12:58 AM
AR Upper Build Question - DD Barrel Nut Hard To Thread On To Upper Cnynrat AR-15 Discussion 3 05-27-2009 03:52 AM