American Defense Mfg UICCUBLK16M2MLOK MOD2 Complete Upper 223 Wylde 16 in Black Barrel, 7075-T6 Aluminum Black Anodized Receiver, M-LOK Handguard for AR-15

American Defense Mfg UICCUBLK14M2MLOK MOD2 Complete Upper 223 Wylde 14.50 in Black Barrel, 7075-T6 Aluminum Black Anodized Receiver, M-LOK Handguard for AR-15

Primary Weapons 2M111UA011F MK1 Mod2-M Upper 223 Wylde 11.85 in Black Barrel, 7075-T6 Aluminum Black Receiver, 11 in PWS PicLok (M-Lok Or Picatinny) Handguard For AR-15

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HM Defense 16MBUP556 MonoBloc Upper 223 Rem, 5.56x45mm NATO 16 in Black Cerakote Barrel, 7075-T6 Aluminum Black Anodized Receiver, 15 in M-LOK Free-Float Handguard for AR-15

HM Defense 125MBUP556 MonoBloc Upper 223 Rem, 5.56x45mm NATO 12.50 in Black Cerakote Barrel, 7075-T6 Aluminum Black Anodized Receiver, 10.37 in M-LOK Free-Float Handguard for AR-15 Pistol