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Knight's Armament SR-15 E3 Mod 2 Upper Receiver, URX 4, 11.5" Upper w/ Keymod rail

All Knights uppers are available, in M-LOK and Keymod Handguards. They come in 5.56mm 11.5", 14.5", 16" and 18" barrel lengths.
Knight's Armament SR15 MOD 2 11.5inch Upper Receiver


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