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7/7/2012 5:08:52 PM EDT
I'm new to AR's and just finishing my first build. Throughout my research I have learned about free float barrels (which, by the way I did not use in my build) and I don't fully understand how they provide for more accuracy. I understand how they are mounted at the receiver end only, but how does that provide for more accuracy? Doesn't the movement translate through the shooter's grip, to the receiver, and consequently to the barrel?

Please help me understand.  Thanks
7/7/2012 5:16:49 PM EDT
[#1]
Ask yourself this question - if the handguard is no longer touching the barrel, what is?
 
7/7/2012 5:17:32 PM EDT
[#2]
There's a thread here discussing the pros and cons of free float set up. Here's the link:
http://www.ar15.com/forums/t_3_118/577378_what_did_going_to_Free_Float_do_for_your_rifle_.html

As an overview it has something to do with maximizing the accuracy of the barrel by taking off some factors that would tend to flex/bend the barrel while shooting e.g. tight sling, resting the non free float barrel on a rest or barricade, etc. With a free float system, this somehow eliminates these factors and you maximize the accuracy capability.

ETA: can't make the link hot!
7/7/2012 5:25:25 PM EDT
[#3]
Accuracy comes from consistency.

Removing items touching the barrel, helps consistency.
7/7/2012 5:28:13 PM EDT
[#5]


How did you do that?

7/7/2012 5:32:20 PM EDT
[#6]
You'd be amazed how much a barrel will move when torqued towards the muzzle. A long free float hand guard will keep those forces off a barrel.
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