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09-08-2012, 03:39 PM
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#1
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Join Date: Dec 2011
Posts: 189
Liked 11 Times on 9 Posts
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How do I know what size picatinny rail fits on my ar15
I have a rra car4 wat size rail does it use. my first ar still learning
Last edited by ScottA; 09-11-2012 at 04:27 PM.
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09-08-2012, 04:18 PM
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#2
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Join Date: Apr 2010
Location: Northwest USA
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Need to read your manual. wat size gas system you got?
*Groan* 
__________________
__________________________________________
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
You'll remember the quality of a gun long after you forget how much you paid for it.
__________________________________________
US Army 1966-69, VFW Life Member, Retired Geek
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09-08-2012, 04:43 PM
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#3
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Join Date: Dec 2011
Posts: 189
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Its a 16in barrel, n I measured the hard guard and it measures 6 1/2 or so inchs,
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09-08-2012, 05:03 PM
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#4
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Join Date: Apr 2010
Location: Northwest USA
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So you have the carbine length gas system? What front sight do you have? What kind of rail do you want? FF or will you just get the handguard replacement style? Gotta start reading (stickys), and more importantly shooting, at least a few hundred rounds before upgrading parts.
__________________
__________________________________________
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
You'll remember the quality of a gun long after you forget how much you paid for it.
__________________________________________
US Army 1966-69, VFW Life Member, Retired Geek
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09-09-2012, 01:18 AM
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#5
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Join Date: Dec 2011
Posts: 189
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I have gone to the range a couple times n have ran 300rounds or so thur it. Id like a drop in quad rail. Jus not sure the size.
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09-09-2012, 01:42 AM
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#6
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Join Date: Apr 2010
Location: Northwest USA
Posts: 5,415
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Likes Given: 302
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7" - assuming you have 7" handguards and a standard end cap on a standard A2 style FSB/gas block.
But make sure that's really the case before buying anything. You might want to post a picture to help us tell.
__________________
__________________________________________
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
You'll remember the quality of a gun long after you forget how much you paid for it.
__________________________________________
US Army 1966-69, VFW Life Member, Retired Geek
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09-09-2012, 02:26 AM
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#7
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Supporting Newbie
Feedback Score: 3 reviews
Join Date: Nov 2011
Location: Las Vegas,Nevada
Posts: 2,084
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I'm guessing its 7".
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09-09-2012, 02:43 PM
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#8
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Join Date: Dec 2011
Posts: 189
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it measures about 6 and a half inches when I put a ruler to the handguard
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09-09-2012, 02:59 PM
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#9
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Join Date: Dec 2010
Location: Central,WI
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You would need to acquire a Carbine length two piece drop in rail to make a change without removing the front sight/gas block.
Diamondhead, Yankee Hiil, Midwest Industries, and many other folks make the rails you describe.
Magpul makes a hand guard to which you can attach rails also.
You are in the early stages of BRD.
Black Rife Disease.
Enjoy your Sport Utility Rifle.
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09-09-2012, 06:13 PM
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#10
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Supporting Newbie
Feedback Score: 3 reviews
Join Date: Nov 2011
Location: Las Vegas,Nevada
Posts: 2,084
Liked 110 Times on 97 Posts
Likes Given: 15
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Get Daniel Defense Rail.. buy once cry once 
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