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#7298581 - 01/11/13 10:35 AM AR is it possible?
Reba Offline
Campfire Regular

Registered: 08/17/06
Posts: 954
Loc: Central Coast
I read an article in "American Hunter" and the author stated; "My rifle is a delight to hunt with; the diminutive package weights only 5.25 pounds. It features a thin, 16 inch fluted barrel."

The rifle is an AR15 chambered in 6.5 Grendel.

Is it possible to build a 5.25 pound AR15? I assume this weight is without sights or scope.
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#7298815 - 01/11/13 11:38 AM Re: AR is it possible? [Re: Reba]
Take_a_knee Offline
Campfire 'Bwana

Registered: 09/10/09
Posts: 12291
My lighest is a Cav Arms lower at 2lb 5oz, with upper consisting of an A3 flattop with BUIS, Bushmaster pencil barrel with a Vortex hider, and a YHM aluminum FF handguard. The upper weighs 3# 15oz, putting the total at 6 1/4 lb. The only way to lighten this on up would be a carbon fiber handguard.

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#7298986 - 01/11/13 12:23 PM Re: AR is it possible? [Re: Take_a_knee]
srwshooter Offline
Campfire Guide

Registered: 12/18/05
Posts: 4256
Loc: grottoes ,virginia,usa
i have done it in 223. very inexpensive build before the shtf. you will have to use a poly or carbon lower. i had a plumcrazy complete lower with a red x arms pencil barreled carbine length upper that weighed right at 5.25lbs. a loaded mag and any kind of optics will push it up fast. i had 473.00 in that ar brand new.


Edited by srwshooter (01/11/13 12:23 PM)

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#7299211 - 01/11/13 01:10 PM Re: AR is it possible? [Re: srwshooter]
TWR Offline
Campfire Tracker

Registered: 11/21/06
Posts: 5256
Saw a thread on another forum where the guys poly trigger broke in his plum stupid lower... With the current climate, I'd stay away from anything questionable especially when trying to save a pound.
http://www.thenpha.com/forum/ubbthreads.php?ubb=showflat&Number=101172#Post101172
For the nay sayers...

That said, using a low mass buffer, carrier and the lightest components you can find, 5.6-6 pounds is gonna be it. I'm a fan of light weight barrels and light weight guns but 7 pounds scoped is about as low and you're gonna get.


Edited by TWR (01/11/13 01:15 PM)

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#7299838 - 01/11/13 03:27 PM Re: AR is it possible? [Re: TWR]
Take_a_knee Offline
Campfire 'Bwana

Registered: 09/10/09
Posts: 12291
I've never heard anything bad about a Cav Arms lower, they aren't made anymore, thanks to the ATF. I had a Bushmaster Carbon 15 that was never very accurate but that could have been the barrel, but I think a non-aluminum upper is a bad idea.

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#7300291 - 01/11/13 04:57 PM Re: AR is it possible? [Re: Take_a_knee]
TWR Offline
Campfire Tracker

Registered: 11/21/06
Posts: 5256
Nope Cav Arms was good stuff. I was pointing to the plum stupid/new frontier lowers that everyone was saying were Glock tough and cheap.

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#7300710 - 01/11/13 06:33 PM Re: AR is it possible? [Re: TWR]
Take_a_knee Offline
Campfire 'Bwana

Registered: 09/10/09
Posts: 12291
Originally Posted By: TWR


That said, using a low mass buffer, carrier and the lightest components you can find, 5.6-6 pounds is gonna be it. I'm a fan of light weight barrels and light weight guns but 7 pounds scoped is about as low and you're gonna get.


Pardon the thread drift but I have to add that the above being an established fact, makes a SCAR 17S's 7.9# weight all the more phenomenal. Add a pound or so for a LW scope and rings of course.

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