Description
Complete Sharps Bros SBUR04 upper with 15″ full top rail handguard.
16″ AR15 Upper, 5.56 CAL, 15″ Handguard, M16 black DLC coated BCG, Radian Charging Handle, Mid Length Gas System.
Full Top Rail. MLOK 7 sides.
Total Weight of complete upper (including BCG and charging handle): 4lbs, 3.3 ounces
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Additional Barrel Specs:
100% US Made from 4150 CMV Material
29 ounces
1:7 RH Twist
Gas Block Journal: .75″
1/2-28 barrel thread
Black Nitride finish
M4 Barrel Extension
