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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 02-04-2007, 6:34 PM
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Default What kind of AR is this?

I need some help identifying the following:

Iron sights?
Upper?
Free float rail?
barrel?


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  #2  
Old 02-04-2007, 6:36 PM
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I like the rail
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  #3  
Old 02-04-2007, 6:37 PM
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I see Troy iron sights, Tangodown Battlegrip pistol grip, Magpul CTR stock, Badger tactical Latch, and a Larue Tactical rail system.
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  #4  
Old 02-04-2007, 6:38 PM
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Quote:
Originally Posted by cornholio1
I like the rail
Larue Tactical .

http://stores.homestead.com/Laruetac...tail.bok?no=46
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  #5  
Old 02-04-2007, 6:41 PM
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Can't really tell, but the barrel's muzzle may well have a thread protector on it.

I also wonder why the guy is not putting his front sight all the way out, on top of his railed gas block. Might as well take advantage of the tad extra sight radius, and I'd always rather have my front sight on the bbl than on a float tube' rail etc.

It also looks like that's an ARMS #40 rear flip sight but then my eyes are tired...
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  #6  
Old 02-04-2007, 7:29 PM
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Good eyes, Ted.

(Plus, I was looking at the pic in a window on my laptop.)
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  #7  
Old 02-04-2007, 7:39 PM
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Where can I get one of those thread protectors?
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  #8  
Old 02-04-2007, 7:43 PM
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adco firearms has some thread protectors:

www.adcofirearms.com
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  #9  
Old 02-04-2007, 8:54 PM
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[QUOTE=Technical Ted]
Not sure who makes the gas block (railed gas blocks never interested me, so I don't follow them at all), but if you look closely, the rail on top is not the same height as the rail on the handguard or upper receiver, so putting the front BUIS there would cause zeroing issues.

It look to me like the front sight can be raised up if it was put on the gas block. It's kind of "z" shaped now, and maybe could be extended?
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  #10  
Old 02-04-2007, 8:59 PM
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why would you put a thread protector on that rifle?i`d just put a flash hider on it since its pinned mag/evil features anyway.
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  #11  
Old 02-04-2007, 9:01 PM
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Quote:
Originally Posted by vern
why would you put a thread protector on that rifle?i`d just put a flash hider on it since its pinned mag/evil features anyway.
It's possible that the builder of this rifle has a second lower equiped with an A2 stock/or ACE stock and an SRB or Monsterman grip for gripless use. I know at least two guys at the range who used thread protectors on their rifle so they can swap the upper between both pinned mag and detachable mag configurations.
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  #12  
Old 02-04-2007, 9:11 PM
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Is it just me or does the barrel look like it has some sort of sleeve on it?
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  #13  
Old 02-04-2007, 9:54 PM
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Quote:
Originally Posted by Technical Ted
I know a little bit about these things. The front sight is raised to it's full extent.


The Troy flip-up front BUIS(Back-Up-Iron-Sight) was designed to be mounted on a rail that is level with the receiver rail. In that position it would have the same height as a standard front sight base. If you were to put it on that RRA gas block, the top the front sight post would be too low. My visual guestimate is about 1/4".

That looks right to me with the better pictuere, thanks!
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  #14  
Old 02-04-2007, 10:41 PM
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Me Likey
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  #15  
Old 02-05-2007, 12:25 AM
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Quote:
Originally Posted by blkA4alb
I see Troy iron sights, Tangodown Battlegrip pistol grip, Magpul CTR stock, Badger tactical Latch, and a Larue Tactical rail system.
Correct on all counts...
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  #16  
Old 02-05-2007, 3:32 AM
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One reason people in other states use a thread protector is to protect the threads when they take their can off.

Assuming they have a thread on can, and not a snap on.
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  #17  
Old 02-05-2007, 8:21 AM
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Thanks for all the responses - those irons are expensive!

I am trying to put together a rifle that looks similar to this one, all these comments have helped a lot.
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  #18  
Old 02-05-2007, 8:58 AM
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Quote:
Originally Posted by Technical Ted
Not sure who makes the gas block (railed gas blocks never interested me, so I don't follow them at all), but if you look closely, the rail on top is not the same height as the rail on the handguard or upper receiver, so putting the front BUIS there would cause zeroing issues.
YHM and others make versions of their flip-up sights that work on a railed gas block, which is 0.25 inches below the receiver plane.

The problem is the older railed gas blocks RRA used aren't Picatinny spec - the slots are too narrow - and the YHM front sights won't fit in them, because their recoil lug is designed for a snug fit in a Picatinny slot, as the best ones are. I had this problem on a JT varmint kit, but the gas block is the same as the RRA varminter they were selling. Amusingly, I bought the YHM gas block rail flip-up from a guy who was selling it because it didn't fit on his RRA, then I had the exact same gas block!

This gas block is different from the one I worked with before (different barrel, of course), and may be up to spec, but it's very frustrating for a major AR vendor to be putting stuff out that's not up to spec. In their defense, they never called it a Picatinny gas block...

Last edited by maxicon; 02-05-2007 at 9:11 AM..
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  #19  
Old 02-05-2007, 2:07 PM
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it's a tacticool rifle!
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  #20  
Old 02-05-2007, 2:15 PM
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looks like the stag 3h upper or whatever it is called with the gas block sight mount deal
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  #21  
Old 02-05-2007, 4:46 PM
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Quote:
Originally Posted by GeneralBacardi
it's a tacticool rifle!

There are no flashlights or lasers!

Thats why I like it, far away from the tacticool look.
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  #22  
Old 02-05-2007, 8:05 PM
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Thay looks like a Birch table with water rings, not coffee rings.
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  #23  
Old 02-05-2007, 9:36 PM
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Quote:
Originally Posted by Diabolus
Thanks for all the responses - those irons are expensive!

I am trying to put together a rifle that looks similar to this one, all these comments have helped a lot.
Yeah troys are expensive....Look into the midwest industries flip up sights as they are just as good and cheaper
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  #24  
Old 02-08-2007, 1:42 PM
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Quote:
Originally Posted by bwiese
Can't really tell, but the barrel's muzzle may well have a thread protector on it.

I also wonder why the guy is not putting his front sight all the way out, on top of his railed gas block. Might as well take advantage of the tad extra sight radius, and I'd always rather have my front sight on the bbl than on a float tube' rail etc.

It also looks like that's an ARMS #40 rear flip sight but then my eyes are tired...
Because the gas block isn't the same height as the rail.
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  #25  
Old 02-08-2007, 1:46 PM
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Quote:
Originally Posted by Diabolus
I need some help identifying the following:

Iron sights?
Upper?
Free float rail?
barrel?


I'd like to introduce you to "Samantha"

that's my mistress

Larue 9.0
CMMG M10 Medcon Middy 16" barrel with M4 feed ramps
CMT complete upper with M4 feed ramps
CMT BCG+charging handle
Stag LPK
Troy BUIS
CTR stock
Tangodown grip
Schuster thread protector
Cproduct 10 rounder
Stag gas block
Badger Ord latch
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  #26  
Old 02-08-2007, 1:51 PM
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Quote:
Originally Posted by ivanimal
Thay looks like a Birch table with water rings, not coffee rings.
Looks like a Diamondback Tactical FAPC with Medium SAPIs
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  #27  
Old 02-08-2007, 6:11 PM
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Hey, I built that rifle! How did I miss this?

The reason for that gas block is because it was cheap, and because it clamps on rather than using set screws. One of the dimples for set screws on the bottom of the barrel is not at bottom dead center, so the original YHM lo-pro gas block was not rotationally aligned. CMMG offered to replace it, but we were in a hurry to get it built.

This is a rather unique barrel profile (CMMG M10), and the gas block can actually be moved back further (as in a carbine length gas system). Care must be taken to properly align (with the gas port) and secure the gas block. This particular gas block will probably be replaced in the near future.

The accuracy seems to be great with this barrel. It's sort of hard to shoot with just the BUIS, especially due to my lack of skills with iron sights. The first 3 rounds fired were around 1.5" at 50 yards with surplus Radway. I don't know if boosterboy has had any better luck with it, but I doubt it

Maybe we'll finally get around to testing the accuracy using my scope and some Black Hills Match with 77gr SMKs.

Last edited by blacklisted; 02-08-2007 at 6:42 PM..
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