GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $627.11 16MBUP556 show more like this 14.99 Defense Depot GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $628.28 16MBUP556 show more like this Calculated in Cart DACK Outdoors GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $636.99 16MBUP556 show more like this Calculated in cart GunZoneDeals GC_UPC HM Defense 16MBUP556 MonoBloc Upper 223 Rem, 5.56x45mm NATO 16" Black Cerakote Barrel, 7075-T6 Aluminum Black Anodized Receiver, 15" M-LOK Free-Float Handguard for AR-15 $639.40 16MBUP556 show more like this FREE SHIPPING on orders over $200 Beebe Family Arms & Munitions GC_UPC HM Defense MonoBloc Upper 5.56 NATO / .223 Rem 16" Barrel $657.99 16MBUP556 show more like this 15.11 GrabAGun.com GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $666.00 16MBUP556 show more like this 9.95 TheGunDock.com GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $669.85 16MBUP556 show more like this 14.95 Guns 2 Ammo GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $694.20 16MBUP556 show more like this Free shipping over $400 (Excludes Ammo) Gman Sport GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $716.41 16MBUP-556 show more like this Calculated in Cart Classic Firearms GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $728.22 16MBUP556 show more like this 9.99 SHTF Tactical GC_UPC HM Defense 16MBUP556 MonoBloc Upper Rifle 223 Rem,5.56x45mm NATO 16" Black Cerakote $742.78 16MBUP556 show more like this Free on Firearms Acute Firearms GC_UPC MonoBloc Upper 16MBUP556 $758.26 16MBUP556 show more like this 9.99-29.99 Per Item Gunprime GC_UPC HM DEFENSE MONOBLOC UPPER RECEIVER $761.99 - show more like this 7.99 Guns.com GC_UPC HM Defense Technology 16MBUP 556 AR-15 Upper Receiver 5.56 NATO 16" Barrel Free Float Hand Guard Picatinny/M-LOK Cerakote Black Finish $791.64 16MBUP556 show more like this $10 Flat for Firearms Cheaper Than Dirt GC_UPC HM Defense 16" 5.56 Monobloc M-LOK Midlength Complete Upper $795.00 16MBUP-556 show more like this $8.99 Flat Rate or FREE over $175 AR15Discounts GC_UPC HM Defense 16" 5.56 Monobloc M-LOK Midlength Complete Upper $814.30 16MBUP-556 show more like this $8.99 Flat Rate Dirty Bird Industries