PSA 16" 5.56 NATO 15" LSA Ravage M-LOK Lightweight Upper

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

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

AERO PRECISION M4E1 Threaded Complete Upper 16" 5.56 Barrel w/ 15" M-LOK ATLAS R-ONE Handguard - BLK

Q LLC Sugar Weasel Upper 5.56 16" BCG Included

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

VKTR Industries VK-1 5.56x45mm 16" 1:7 M-LOK Rail w/ BCG & CH, Black - V-4027-3410-001-RP

Bushmaster AR-15 Complete Upper Minimalist SD 556 Nato AR15 16" 90025