Aero Precision 16" 5.56 Barrel With Mounted Front Sight, Mid-Length

Aero Precision 16" 5.56 Barrel With Mounted Front Sight, Mid-Length AERO Precision 16" 5.56 NATO barrel with A2-mounted front sight and barrel nut is manufactured from 4150 Chrome Moly Vanadium barrel steel and is button rifled. These barrels are QpQ nitride-treated for extended barrel life and corrosion resistance. AERO Precision barrels are made in the USA and come with a lifetime warranty. Please note this barrel does NOT include the Front Sight Post. Features Chambered in 5.56 NATO Length is 16" Profile is M4 Material is 4150 Chrome Moly Vanadium Finish QPQ Corrosion Resistant Gas System Length is Mid-Length Gas Block Journal is .750" Twist Rate is 1:7 inches Muzzle is Threaded at 1/2-28 Barrel Extension is M4 Weight is 33.28oz