Geissele URGI CHF Barrel 5.56 Complete Upper Assembly Black/DDC Anodized-MK16 HG - $1229.95 For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the evolution of America’s right arm

Geissele MK16 14.5", 11.5", 10.30" URGI Upper CHF Barrel, ACH, REBCG 5.56mm DDC - $1232.50 w/code "AR15" Color : DDC Barrel Contour : Government Cartridge : 5.56x45 NATO Item Height (Inches) : 2.300 Barrel Length : 14.50 Item Weight (lbs) : 3.900 Item Width (Inches) : 1.800 Make Model Fit :

Geissele AR-15 USASOC URG-I Near Clone Upper Receiver Improved Complete 5.56x45mm 14.5" Barrel Pinned Surefire SF4P - $1249.99 Product #: 723083 Manufacturer #: 08-159 UPC #: 817953023198 For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes.

GEISSELE AUTOMATICS LLC - MK16 14.5" URGI Upper CHF Barrel, ACH, REBCG 5.56mm DDC - $1215 after code "TA10" + S/H Color : DDC Barrel Contour : Government Cartridge : 5.56x45 NATO Make Model Fit : AR-15.Universal Barrel Length : 14.50 Muzzle Threads : 1/2"x28 Finish : Anodized Twist : 1-7 Gas System