Complete Upper Receivers

Daniel Defense M4A1 RIS II Complete Upper Receiver - 14.5" Pin/Weld - FDE

Daniel Defense DD4 RIII Complete Upper Receiver - 16" FDE

Daniel Defense MK18 RIII Complete Upper Receiver - 10.3" FDE

Daniel Defense M4A1 RIII Complete Upper Receiver - 14.5" FDE

Daniel Defense DD4 RIII S 5.56 Nato Complete Upper Receiver - 11.5" FDE

Matador Arms MAT-9 9MM Blowback Upper Receiver

Bravo Company MFG (BCM) MK2 5.56 NATO Upper Receiver Group w/ MCMR-13 Handguard - 14.5" FDE

Sig Sauer MCX-SURG 5.56 NATO Suppressed Upper Receiver Group Upgrade Kit - 11.5"

Noveske x Irregular Defense Chainsaw AR-15 5.56 NATO Complete Upper Receiver - 11.5"