F Aero Precision M4E1 Complete Upper, 8" 5.56 Pistol Barrel with 7.3" Enhanced GEN 2 Handguard - Anodized Black - APAR640269M102 $509.99 APAR640269M102 show more like this Calculated in Cart Classic Firearms F Aero Precision Complete Upper, M4E1-E, 5.56, 8in, Pistol Barrel, EM7.3 Anodized, Black, APAR640269M102 $509.99 APAR640269M102 show more like this Free Shipping on most orders over $49 Optics Planet