Amazing engine here for a very good price Only issue is when line is plugged in it sprays air. I was told it was because of a oring being dried out which is a 1$ part but I can't confirm that. Comes with fcu filtered line and everything else the engine normally comes with You pay shipping 6.95$ I ship next day via priority mail. Price is non negotiable ONLY TRADES ARE G&P HIGH RPS MIDS WITH CASH PROTECH MK2 OR 2.5 ILL THROW IN EXTRAS REAL STEEL MAGS FOR ANY GUN BUT ar15 or ak