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-   -   Free Float tube question (http://www.firearmstalk.com/forums/f20/free-float-tube-question-46999/)

ZombieKiller83 08-17-2011 08:33 PM

Free Float tube question
 
So i was doing some screwing around on this pimp my gun site, and it really put some ideas in my head. So the question is how difficult would it be to remove the A2 front sight(let alone is it possible without screwing up the operation of the rifle) so that i can put a low-pro gas block and install a Daniel Defense Omega 12.0 free float tube on my BCM midlength 16" upper?
http://i1094.photobucket.com/albums/...myweapon41.jpg
The second one down is what i'm thinking. I recently picked up a Spotting Scope/Rifle Scope combo for a smoking deal which got me thinking that i wanna throw the scope on my AR for some long range fun at the range. Now i know i could probably mount a scope as is with no problems but just figure it would make it just a lil more "scope friendly" with free float tube and flip up sights. Don't mind the bottom rifle was just toying with the idea of a 20" barrel build :p. Any opinions are welcomed and appreciated as usual :cool: I've also considered the option of building another upper with this set-up but i fear it will only turn into another rifle haha

JonM 08-17-2011 11:05 PM

its pretty easy to do. you will need a barrel nut wrench to remove the barrel nut and install the free float one. just knock the front sight base pins out remove the barrel nut replace it all with the desired parts.

just make sure your knocking the fsb pins out the right way some go left some right.

ZombieKiller83 08-18-2011 01:33 AM

Quote:

Originally Posted by JonM (Post 565094)
its pretty easy to do. you will need a barrel nut wrench to remove the barrel nut and install the free float one. just knock the front sight base pins out remove the barrel nut replace it all with the desired parts.

just make sure your knocking the fsb pins out the right way some go left some right.

Awesome, thanks Jon :cool:

Gatoragn 08-18-2011 01:53 AM

It may be necessary to re-bend the gas tube. A tubing bender is a good item to have access to.

canebrake 08-18-2011 02:01 AM

And be aware that a change to the gas tube dimension can screw with the BCG cycle timing.

Quentin 08-18-2011 02:45 PM

Quote:

Originally Posted by ZombieKiller83 (Post 565012)
... I've also considered the option of building another upper with this set-up but i fear it will only turn into another rifle haha

ZK, I think this is your best option. The BCM upper is very handy as is and it's done right. Mods can make it unreliable as Cane pointed out. I'd keep it as is and buy a good upper already optimized for scope work. Many of us end up with two or more ARs and I bet you do too. So I'd put the money for conversion into another upper instead. And with the extra upper, then you have no excuse not to build another lower! :p

Also, have you tried mounting your scope already? The front sight probably won't be an issue anyway...

mjkeat 08-18-2011 03:48 PM

I recomend using a pinned lo pro gas block or just shaving down the one you have and reusing it if you go that route.

A 2nd upper is nice to have if you plan on using different optics and not spending the money for a good true return to zero mount like a Larue.

ZombieKiller83 08-18-2011 03:57 PM

Thanks guys, guess it's time to start saving up for that 20" build hehe :D Will probably work out better this way with a longer barrel for a bit more accuracy for longer shots :cool:

mjkeat 08-18-2011 04:03 PM

Theres a video you should watch. Its not so much making the distance as it is terminal balistics once it gets there.

<iframe width="560" height="345" src="http://www.youtube.com/embed/Qa3NGYcZ__M" frameborder="0" allowfullscreen></iframe>


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