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Richard G. asked 6 years ago:
Richard, the barrel is actually stamped 5.56NATO so it will handle both 5.56 and .223 no issue Sir.
James G.
6 years ago
it is a .223/5.56 upper and can shoot both "Specifications for Windham Weaponry UR16LHB Upper 223Rem/5.56 NATO 16" No Handle AR-15 4150 Steel: Mfg Item Num: UR16LHB Supplier SKU: 84211 Category: UPPERS Receiver Finish: Black Type: Complete Gas Impingement Caliber: 223 Remington/5.56 NATO Sights: A2 Front Barrel Length: 16.0" Barrel Material: 4150 Steel Twist: 1:9 Barrel Description: Heavy Contour Barrel Finish: Black Receiver Description: A3"
Randy I.
6 years ago
