Del-Ton DT1040 16" Mid Length 5.56 NATO Complete Upper with 15" M-LOK Handguard

Del-Ton Sierra 316 556 Nato 16" Barrel 11" Samson EVO KeyMod Handguard SMORH160

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

Del-Ton 316H 556 Nato 16" Barrel 316 11" Samson EVO Handguard SMORH161

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

BUSHMASTER Bravo Zulu 16" 450 Bushmaster w/ 14" Free-Float M-LOK Handguard | Black

AMERICAN TACTICAL IMPORTS Milsport Upper 5.56 7.5" MLOK No Handle/BCG