Bravo Company MK2 MCMR-15 5.56 16" FDE Barreled AR-15 Upper Receiver

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AERO PRECISION M4E1 Complete Upper 5.56 NATO 16" HBAR CMV Barrel, 15" ATLAS R-ONE M-LOK Handguard

TacFire AR-15 .223 / 5.56 Unassembled Upper Receiver Kit - 14.5"

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CMMG 55BB40BMB Resolute MK4 5.56x45mm NATO 16.10", Midnight Bronze, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)