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Greetings,I have four types of uppers available. Each is $450 $425 shipped.UPPERS:M4E1 R-One - BLK - 6 5x available in BLK (threaded upper)M4E1 HBAR - BLK - 1 available in BLK (enhanced upper)M4E1 S-One - BLK - 1 available in BLK (threaded upper)I accept most forms of payment.