Quote:
Originally Posted by Ninja_En_Short
Bad idea the URX : G&P makes it for WA based and would need to rethread the upper receiver. Plus you need a special tool to mount it.
Take a 7" DD that if possible, uses the regular AR15 barrel nut to avoid incompatibilities. The 7" will also permit to put on a short stroke piston system. If I recall LWRC puts that on all their guns now.
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thought He's building a WE gbbr with real steel parts, didn't notice he was saying G&P, the real URX is only around $500.