262alcante Posted May 2, 2018 Share Posted May 2, 2018 Thinking about building a light weight AR15,anybody use one such as the Gwacs one or others.Pros /cons. Link to comment Share on other sites More sharing options...
StealthyBlagga Posted May 2, 2018 Share Posted May 2, 2018 GWACS sells the lower receiver originally designed by Cavalry Arms. I had a couple back in the day and they were pretty robust. The stock is A1 length (on the shorter side) and not adjustable for length. Take Down and Pivot pins were proprietary, and IIRC the buffer was secured with a roll pin. Sling locations are limited (no QD points). Overall, if you are OK with the fixed stock and pistol grip, they are a decent option for a lightweight build. I imagine you could get similar weight with a forged aluminum lower and a light-weight stock like the MFT Minimalist, but confess I haven't looked at the relative weights closely enough to know for sure. Link to comment Share on other sites More sharing options...
usmc1974 Posted May 2, 2018 Share Posted May 2, 2018 I would go with a mag4 tactical systems magnesium aluminum lower, it is just 5.7 oz stripped. With reinforced pin points. A pencil free floated barrel. Just a thought Link to comment Share on other sites More sharing options...
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