I have a Masterpiece arms MPA57 in 5.7x28mm. they are around 900.00 new. I have a barrel extension 80.00, a fore grip 35.00, a 30 round magazine 42.00. a single point sling 55.00. and 100 rounds of ammo 28.00. it also comes with original case, flash suppressor, and factory 20 round mag. Looking to sell or trade. 650.00 cash or 700.00 trade value. CHL preferred, no felony, bill of sale .