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Rob101 · November 20th, 2012, 12:54

My self along with a fellow team mate are doing intnerchangeable uppers for our we m4's so we can changer them to m16 uppers, we have been having a hard time trying to get the hop up unit its self. Would anyone know where we could find them and are they avalible in metal? We upgrading them to C02. If anyone has links or info it would be much appreciated thx.

November 20th, 2012, 12:54	#1
Rob101 Trader rating Join Date: Dec 2011 Location: Ontario	WE Hop up assembly. My self along with a fellow team mate are doing intnerchangeable uppers for our we m4's so we can changer them to m16 uppers, we have been having a hard time trying to get the hop up unit its self. Would anyone know where we could find them and are they avalible in metal? We upgrading them to C02. If anyone has links or info it would be much appreciated thx.