looking to sell a same as new tank its a 52mm like is used on the aea guns and also the karma eq factory tank is 13 7/8 long 500cc this one i have i put it on my karma eq and its 10.5 long 330 to 350cc but neded up going with a 7 inch tube the aea 52mm tubes comne in all kinda lengths from factory 4 inch 7 inch 10.5 and 13 7/8 thats ones i have seen this one i like to sell is 10.5 350cc and i like to sell the aea ar 15 grip feels great i run ergos but for a harder plastic grip feels good 50$ shiped is what i like to get out of both items 
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