GC_UPC Aero Precision M5 20" .308 CMV Complete Upper Receiver w/ ATLAS R-ONE Handguard - APAR538705M27 $719.99 APAR538705M27 show more like this Calculated in Cart Classic Firearms GC_UPC Aero Precision M5 Complete Upper Receiver, 20in .308 Rifle Barrel, w/ATLAS R-ONE 15in M-LOK Handguard, Anodized, Black, APAR538705M27 $719.99 APAR538705M27 show more like this Free Shipping on most orders over $49 Optics Planet GC_UPC Aero Precision M5 Complete Upper 20" .308 Rifle Barrel ATLAS R-ONE 15" M-LOK HG - Anodized Black $719.99 APAR538705M27 show more like this $8.99 Flat Rate Dirty Bird Industries