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Super lightweight rifle build idea....Anyone used GWACS Lower?


thegunnerd
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I just came across these lowers. All poly. I may be late to the party, but they seem like they're fairly well made. A little bit of flashing that needs to be smoothed out , but i can't think of a way to reduce an overall build by about a pound ( as they quote , compared to a standard A2 aluminum lower )

What would you use on your top end ? I would think a lightweight upper of some sort , 14.5" pencil barrel with pinned and welded muzzle brake .JP low mass bolt carrier group, Maybe a burris or trijicon micro red dot, and if you must magpul mbus sights. I wonder what the final weight would be .

Anyone try this out ?

http://www.gwacsarmory.com

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Depends on what you were trying to use this for. Home defense or race gun? I have a super light weight 14.5 barrel, but if you send to many rounds down range the POI shifts from cold bore to 40-60 rounds. Vs Medium-recce profiles don't shift hardly at all. Also for a non race gun I would use a Young MFG lightened bolt carrier with the forward assist.

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This has been covered at length. I'm pretty sure that the general agreement was that it isn't anywhere near a pound lighter than an aluminum lower.

I have a polymer lower. I have maybe 250 rounds through it. It is fine. Use the captured hammer and trigger pins. Everything will be fine.

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I doubt i'd use it as a competition gun. Probably for carbine class or home defense. I just came across the lowers and have always wanted to see how light i could make an AR that was still shootable and at least moderately accurate . I don't need .5 moa . More then likely this would be a 100 yards and in gun.

A for the heck of it build. The complete lower is only 300 bucks. Maybe do some interesting stippling on the grip.

Edited by thegunnerd
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These are made by the company that bought the Cavalry Arms equipment. They are good and I've built a few lately for folks who got caught without. I prefer a mid gas 16" barrel and a standard weight bcg. The lightest I got was 4.3 pounds with a fastfire. Most are around 5 pounds.

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