US 4150 Nitride AK-47 Barrel - No Gas Port

US 4150 Nitride AK-47 Barrel - No Gas Port Made From 4150 Steel Nitride Treated Extractor cut 1 in 10 twist 6 groove Rifling Hand guard Retainer slots are cut Threaded 14x1 Left Hand for all standard AK muzzle breaks Outer Dimensions: Front Trunnion: 23mm Rear sight base: 17.5mm Handguard retainer: 17mm Gas block: 15mm Front sight base: 14.55mm US 4150 Nitride AK47 Barrel without Gas Port is made of 4150 CMV Steel, Nitride Treated and Threaded 14mmx1 LH at the muzzle is a great choice for your AK47 Kit build. These are made with the same Military Spec Steel as the US Army's AR15 rifle platform for accuracy long service life. These barrels are designed to work with most European-block Stamped AK Rifles IE, Polish Romanian, these are not for Milled kits or Yugo kits. Nitride Treated Barrels provide a very hard surface with excellent corrosion resistance. Nitriding has advantages in that it is a treatment of the steel itself instead of a secondary material which is added to the surface like chrome, this method offers superior corrosion resistance and accuracy then Chrome Lined Barrels Nitride Heat Treating breif explanation; During the process both nitrogen and carbon are liberated at the surface of the ferrous component. These nitrogen and carbon atoms form a compound layer at the surface and a deep diffusion zone beneath the surface. The compound layer provides lubricating properties to the surface and are extremely useful in areas where use of conventional lubricants are ineffective. Nitride Heat Treating Eliminates the need for chrome lining on Rifle Barrels. The barrier formed by this process is far better than any chrome lining process. The resulting barrier on the lining of the barrel at end result is .001 in thickness. Improves accuracy and eases the cleaning process. Please Note: Due to the vast differences in manufacturing specs tolerances of surplus Warsaw pact style AK rifle kits you may find spec differences with trunnions etc . Kits may also require additional fitting (ex:knurling, over-sized pin installation, minor welding, etc.) to complete your build is common with AK builds .. We cannot guarantee the fitment of any parts due to the inherent variables associated with the AK format . Kits should be assembled by a skilled builder with knowledge of the Kalashnikov line and building practices. We can assure you that we use these barrels with several AK builds for our firm with no issues .