This review covers the Radical Firearms 556 Upper, a budget-friendly AR-15 upper receiver priced between $400-$450. The presenter, Elliott Delp, highlights its 7075 T6 aluminum construction, 12-inch RPR rail, Socom barrel with a 1:7 twist, mid-length gas system, and A2 flash hider. It achieved approximately 1 MOA accuracy at 100 yards with PPU ammunition and demonstrated reliable cycling.
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