excellent The price for a receiver that includes a forward assist and dust cover is awesome. Also, made in the U.S.A. I installed it onto one of my lowers and very little wiggle. The finish is excellent. To bad it isn't t-marked. Overall, I am happy with it.
Matches their freefloat finish. Has a different ejection port cover pivot rod design. Back half of rod is spring loaded, depress end of rod and remove it after upper is assembled. First one, cover would not stay closed. Acme shipped replacement upper immediately. Good to go. Upper finish matched their 15 super slimcutout freefloat exactly.
Fast shipping, great quality, Acme is always on top of shipping. This upper got to me in 2 days. You are getting unbeatable quality for this price.
Great upper great finish We built a complete acme upper The is ben true right now 1800 rounds and counting the uppers have a great finish the Mach any lower perfect the idolized is very good quality and machetes any hi end lower in the market we put a very liter work on the built because the great machining Tolerances in the upper the barrel fix nice amd tie on the upper with almost no play and the center of the bore was true to the picatinny rail and that give us a very accurate upper very Happy with his company and there products line
Allen R Peters
Great upper receiver This assembled upper recever is a great value.
Upper Receiver Great Quality for a great price, will definitly use ACME Mach for future purchases!!!!
great upper I bought this upper to because I needed a flat top and the price point couldn't be beat the quality and finish are great. and everything went together without any problems. Would and will buy more products from this company I am very pleased with them.
Great Product As far as service and shipping,its great. The reciever is very well finished.Fit and function are great and has no play on my lower reciever.Very satisfied with my purchase and this receiver and company.
Perfect Form, Fit, & Function I bought this to replaced the upper on my S&W MP AR15. The first generation of this rifle did not have a forward assist or a dust cover. It does now. Perfect fit, perfect color match, perfect function.
Upper receiver Very tight fit, nice machining, I prefer to fit the barrel, instead of having a loose fit.
Ralph D Black
Upper Receivers the quality of the receiver is superb, I would recommend this to anyone.