ATI Milsport Complete Upper 300 BLK 8.5" Barrel 7" M-LOK Handguard

CMMG 30BC40AMB Resolute MK4 300 Blackout 16.10", Midnight Bronze, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)

TacFire AR-15 .300 Blackout Unassembled Upper Receiver Kit - 5"

AERO PRECISION M5 20" .308 CMV Complete Upper Receiver w/ ATLAS S-ONE M-Lok 15" Handguard

ALEXANDER AR15 STANDARD UPPER - 300AAC 16" BLACK

CMMG DISSENT Mk4 AR-15 6.5" CM .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard-Midnight Bronze

ATI American Tactical Alpha Maxx 300 Blackout 16" Barrel ATIGAX30011MLT30

AMERICAN TACTICAL IMPORTS AR15 Milsport RIA Alum Rec 300Blk 16" Rgr Stk 30rd