PDA

View Full Version : Lightest AR build


Afterburnt
09-25-2010, 4:58 PM
I got a lower that I want to build as a lightweight "kiss" Build. Can you fine people suggest which upper and butt stock to use, I dont want any supper cheapo parts but not the most expensive either.

thanks

Darquan
09-25-2010, 5:24 PM
Not super lightweight but fairly light.

Bravo Company 16'' lightweight upper with carbine gas $385 or $520 with bolt and charging handle.

http://www.bravocompanyusa.com/BCM-Standard-16-LIGHT-WEIGHT-Upper-Receiver-p/bcm-urg-car-16lw.htm

Magpul MOE kit $100 in a variety of colors.

http://dsgarms.com/ProductInfo/MGMOEKITBLK.aspx

Add a lower parts kit, rear sight, mag lock, and magazine. Done

i1800collect
09-25-2010, 5:26 PM
Are you looking for a complete upper or are you planning on building it yourself?

Afterburnt
09-25-2010, 5:29 PM
A complete upper.

If I have to build it it may never get done like the one I already have waiting for me to do something with it, but that is for another rifle.

damon1272
09-25-2010, 7:39 PM
I can say that the Bravo Company light wieght upper is a great buy. I ditched the front site and installed a troy extreme handguard and magpull sites. Very light and a blast to shoot.

till44
09-25-2010, 8:40 PM
Just as a heads up, it would seem that Magpul's MBUS' would be the lightest sights to go with, but the fixed Daniel Defense sights are actaully a bit lighter. If you're trying to shave weight every little bit helps.

I'd also go with a Troy or VTAC tube for a forend, and shave a A2 sight down to bare minimum.

Secret
09-25-2010, 10:32 PM
Vltor modstock

thegrayham
09-25-2010, 10:43 PM
Not super lightweight but fairly light.

Bravo Company 16'' lightweight upper with carbine gas $385 or $520 with bolt and charging handle.

http://www.bravocompanyusa.com/BCM-Standard-16-LIGHT-WEIGHT-Upper-Receiver-p/bcm-urg-car-16lw.htm



What he said.. I have been looking and I think this is the best upper and parts kit for light weight, but quality upper.

FS00008
09-25-2010, 10:45 PM
BCM 16" Lightweight. Flattop with carbine handguards with a rail on the gas block and flipup Magpul MBUS.

till44
09-26-2010, 12:55 PM
Here is Rob's (gotm4) from M4C.net "featherweight" build. The rifle weighs in at less than 6 pounds, and has everything you need in a fighting carbine.

http://www.m4carbine.net/showthread.php?t=39599
http://img.photobucket.com/albums/v408/gotm4/gunpics/projectfeatherweight029.jpg

Afterburnt
10-16-2010, 12:42 AM
Not super lightweight but fairly light.

Bravo Company 16'' lightweight upper with carbine gas $385 or $520 with bolt and charging handle.

http://www.bravocompanyusa.com/BCM-Standard-16-LIGHT-WEIGHT-Upper-Receiver-p/bcm-urg-car-16lw.htm

Magpul MOE kit $100 in a variety of colors.

http://dsgarms.com/ProductInfo/MGMOEKITBLK.aspx

Add a lower parts kit, rear sight, mag lock, and magazine. Done

ok ordered everything for my first BB build, cant wait to get out of CA so I can pull the BB

Afterburnt
10-16-2010, 12:48 AM
damn I forgot the gas block!

Afterburnt
10-16-2010, 12:58 AM
gimme a gas block with rail recommendation

Thanks

MrPlink
10-16-2010, 1:03 AM
Light? Ar pistol :)

Afterburnt
10-16-2010, 1:04 AM
ok ordered everything for my first BB build, cant wait to get out of CA so I can pull the BB

Light carbine as per: Darquan see above

NiteQwill
10-16-2010, 9:21 AM
6 pounds and change. :) Bravo Company LW 14.5.

http://www.sk8ng.com/dusty/wp-content/uploads/2010/10/ARP01.jpg

evidens83
10-16-2010, 9:25 AM
Damn those MOE middy HGs are the business!

gemini1
10-16-2010, 1:22 PM
6 pounds and change. :) Bravo Company LW 14.5.

http://www.sk8ng.com/dusty/wp-content/uploads/2010/10/ARP01.jpg

NiteQ, nice build. Is that 6+ lbs with or without the Eotech and loaded 10/30 mag? I'm guessing without?

Afterburnt
10-16-2010, 7:48 PM
how bout this gas block?

http://www.bravocompanyusa.com/PRI-Gas-Block-With-Top-Picatinny-Rail-p/pri%2005-075-04%20gas%20block.htm

paladin4415
10-16-2010, 8:02 PM
how bout this gas block?

http://www.bravocompanyusa.com/PRI-Gas-Block-With-Top-Picatinny-Rail-p/pri%2005-075-04%20gas%20block.htm

Just leave the standard front sight base and use the Magpul MOE handguards. If you really want a rail get a 7" DD Omega.

Afterburnt
10-16-2010, 8:07 PM
Just leave the standard front sight base and use the Magpul MOE handguards. If you really want a rail get a 7" DD Omega.

I dont want a full rail forend. I ordered the Magpul BUIS set for it so I need a gas block with a rail to mount the front sight.

paladin4415
10-16-2010, 8:08 PM
I dont want a full rail forend. I ordered the Magpul BUIS set for it so I need a gas block with a rail to mount the front sight.

What handguards did you order?

Afterburnt
10-16-2010, 8:09 PM
These:

http://dsgarms.com/ProductInfo/MGMOEKITBLK.aspx

D.R.
10-16-2010, 8:11 PM
I dont want a full rail forend. I ordered the Magpul BUIS set for it so I need a gas block with a rail to mount the front sight.


Don't mount your front MBUS on a gas block.

Afterburnt
10-16-2010, 8:12 PM
Don't mount your front MBUS on a gas block.

is it gonna melt?

paladin4415
10-16-2010, 8:15 PM
You need the standard front sight base for those handguards. Just return the front Mbus or sell it.

Afterburnt
10-16-2010, 8:17 PM
You need the standard front sight base for those handguards. Just return the front Mbus or sell it.

or keep it as an excuse to start another build lol.

thanks

D.R.
10-16-2010, 8:21 PM
is it gonna melt?


Magpul does not recommend mounting their MBUS' on a gas block due to heat and how it affects the MBUS.
Also remember to not tighten them down too much.

Afterburnt
10-22-2010, 3:32 PM
It's done! Any suggestions or opinions on knocking off some more weight? FBA removal???

Afterburnt
10-22-2010, 4:09 PM
Anyone ever heard of a lightweight flash suppressor?

GasPiston
10-22-2010, 4:09 PM
In my opinion if you want light weight you will have to do without a forearm rail just the standard forearm coveres. typically those rails add weight unless you get a carbon fiber one see below.

I am building a light weight rifle for my wife. I just purchased an adam arms 16 inch standard upper it weighs 4.32 pounds. You can pick one up for around $550. There are probably lighter options out there but I went for this one because of the gas piston system i just prefer them they require less cleaning (A gas piston system adds weight). You might consider getting an upper with a 14 inch barrel with a pinned muzzle break as long as it meets the minimum barrel length requirements.

If you want a railed forearm then there are carbon fiber options that weigh 13 oz including barrel nut.

http://www.pri-mounts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PRI&Product_Code=05-071-02B&Category_Code=FOREARMS

http://www.brownells.com/.aspx/pid=40160/Product/AR_15_M16_GEN_III_CARBON_FIBER_FOREARM


Stock:

For a stock you should consider getting ACE ARFX Entry Stock it weighs 9.7 ounces

http://riflestocks.com/catalog/product_info.php?cPath=75_77&products_id=190

Or

ACE AR15 Ultra Light Stock at 5 ounces.

http://riflestocks.com/catalog/product_info.php?cPath=75_77&products_id=192


Usually Del-ton has them at a good price (around $90) with buffer tube, buffer and spring:

http://www.del-ton.com/AR_15_Buttstocks_Fixed_Buttstocks_s/62.htm

Lower receiver:

There is not much you can do with the lower if you want to use a metal lower but if you don't mind using plastic well there are the Plum Crazy lowers to consider.

After all the big items stock, upper, lower. Then consider the smaller stuff.

For example use a light weight buffer, use plastic sights (magpul) etc... all these little things add up. The more toys and furniture you add to your rifle the heavier it gets.


Just my opinion

Afterburnt
10-22-2010, 4:10 PM
You need the standard front sight base for those handguards. Just return the front Mbus or sell it.

Pal, are you sure about that, just looking at it it seems I could change it out for something else and still use this handguard?

GasPiston
10-22-2010, 4:31 PM
I am not saying that you cannot have a handguard there are many options out there for plastic ones. Even the standard A4 hand guards are light. What I was infering is that you what a railed forearm/hand cover like daniel defense etc... they add at least a half a pound to the rifle. Then you are bound to add attachements to the rails that will also increase the weight.

The overall idea is to keep the rifle simple.