Great accuracy - Aero Precision M4E1 Threaded 11.5in 5.56 w/ATLAS R-ONE Handguard Upper Receiver with Flash Hider

Out of the box I zeroed at 50 yards and took it out to 100 yards with 62G green tip because I have a ton literally of it and it grouped very well and the accuracy was great for that round while I’m more of a quad rail guy I found this hand guard grew on me quick and I’m not going to change it out for MI quad rail I like it that much I put M Lock rubber grips on it but may change those for a hard plastic type I just threw a guisslie 2 stage the G2S I think? The cheaper one and know that will only help the accuracy. If you are looking for a pistol length upper that IS accurate out to at least 100 yards look no further and get this upper it’s what you need there are some very good reviews on YouTube a guy named Navy Sooner has a great one check it out and get the threaded one whitch means the way the hand guard is attached.