GC_UPC Cmmg 30Bc40amb Resolute Mk4 300 Blackout 16.10", Midnight Bronze, M-Lok Free-Float Handguard For Ar-Platform (No Bcg OR Charging Handle) $449.41 30BC40AMB show more like this Firearms $18.45, Free over $500 Shooting Surplus GC_UPC CMMG 30BC40AMB Resolute MK4 300 Blackout 16.10", Midnight Bronze, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle) $492.26 30BC40AMB show more like this 19.99 The Armory at LTT