GC_UPC M4E1 THREADED 350 LEGEND ASSEMBLED UPPER RECEIVER $601.06 - show more like this Calculated in Cart DACK Outdoors GC_UPC M4E1 THREADED 350 LEGEND ASSEMBLED UPPER RECEIVER MAP - show more like this 14.95 TheGunDock.com GC_UPC M4E1 THREADED 350 LEGEND ASSEMBLED UPPER RECEIVER MAP - show more like this Free shipping over $400 (Excludes Ammo) Gman Sport GC_UPC Aero Precision M4e1 Threaded 350 Legend Assembled Upper Receiver - M4e1 Threaded Assembled Upper 350 Legend 20" Qpq Carbine Blk $674.99 APAR700106M100 show more like this additional Brownells GC_UPC Aero Precision Complete Upper, M4E1-T, .350 Legend, 20in, RM16.6 Anodized, Black, APAR700106M100 $674.99 APAR700106M100 show more like this Dvor GC_UPC Aero Precision M4E1 Threaded 20" .350 Legend Carbine Length Complete Upper Receiver with 16.6" ATLAS R-ONE Handguard - Anodized Black - APAR700106M100 $674.99 APAR700106M100 show more like this Calculated in Cart Classic Firearms GC_UPC Aero Precision Complete Upper, M4E1-T, .350 Legend, 20in, RM16.6 Anodized, Black, APAR700106M100 $674.99 APAR700106M100 show more like this Free Shipping on most orders over $49 Optics Planet GC_UPC M4E1 THREADED 350 LEGEND ASSEMBLED UPPER RECEIVER $674.99 - show more like this Free shipping on orders over $300 Skogen’s Gun Supply