PSA 20" CHF 5.56 NATO 1/7 MOE FDE 7075 T-6 Forged Upper - with BCG and Charging Handle $450 OBO free shipping to lower 48 Barrel length 20" Stainless steel Muzzle brake or standard flash hider Cold Hammer Forged Barrel Machine Gun Steel 5.56 Nato Chamber 1 in 7" twist Double-thick Chrome-lined bore and chamber High pressure tested Magnetic particle inspected M4 feedramps Forged, flat top upper T-marks utg pro Handguards M16 Bolt Carrier Group & Charging Handle 20" Fluted Melonite QPQ Barrel 5.56 NATO 1/9 - 7075 T-6 Forged Upper - with Nickle Boron never fired BCG and Charging Handle. $849 OBO & free shipping to lower 48 20" Fluted Melonite QPQ Barrel Rifle length Stainless gas tube Free floating hand guard Nickle boron Bolt Carrier Group & Charging Handle This barrel features a 5.56x45mm NATO chamber for full compatibility with surplus mil-spec ammunition or commercial 223 Remington ammunition. Constructed of 4140 chrome moly steel, the barrel is Melonited for ultimate surface protection. The melonite coating provides a thinner surface than chrome-lining, so bore friction is reduced for better accuracy. In addition, melonite is harder than chrome-lining providing a longer wear life. This barrel is an excellent choice for a general purpose AR rifle build especially in states that do not allow a threaded barrel. It is perfectly suited for use at the range, in a 3-Gun match, or in the field pursuing game.