Best bang for the buck in 7.62x39 uppers - Radical Firearms AR-15 RF Upper Assembly 16in 7.62x39 w/ A2 Flash Hider

This Radical Firearms Upper has performed well for me after break in and realizing I needed certain items to run a 7.62x39mm Chamberin in th AR15. The handguard is not the best and has some movement if hit hard enough. But for my uses it works just fine as it's equipped with a Vortex Crossfire 2 1-4x LPVO Scope. You will want C Products Magazines, an Enhanced 7.62x39 Firing Pin, and an Extra Power Hammer Spring. With Good Brass she runs 100%, lol maybe 90% in binary mode. Steel is still pretty reliable in it, but may get 1 or maybe 2 mess ups every few hundred rounds.