When purchasing Brownells or any other brand from eGoods365.com store, you can be sure that (a) you are purchasing from US based company with the most responsive and friendly customer service; (b) an authentic, not a counterfeit and not a refurbished product.

Brownells Government Barrel Assemblies come with a hard chrome bore, offered over button rifling, and are manufactured by a US Government Contractor that holds to stringent standards. These assemblies are High Pressure Tested, then t subject to Magnetic Particle Inspection & Gauging to ensure that there are no imperfections. These assemblies are ready-to-install, featuring slip ring assembly, pre-installed F-Marked front sight base, and handguard cap. M4 Carbine assemblies have an appropriate round cap, while the rifle length features the proper triangle. Barrels are made of 4150 chrome moly steel and come with a 5.56x45mm chamber and 1-7 twist, ensuring acceptance and desired performance with 62 grain and greater bullets. All barrels are marked as “5.56x45mm NATO MFR 12238 MP HP 1-7”.