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The Adams Arms AR-15 Gas Piston Carbine Upper Assembly in 5.45x39 Russian is completely assembled and ready to install on any standard AR-15 lower receiver. The A3 upper is chambered for 5.45x39mm Russian, making surplus ammo a plentiful and cost effective choice for inexpensive shooting. Protection from corrosion is enhanced by an ion-bonded bolt and Melonite treatment applied to the barrel, bolt carrier, bore, flash hider, gas block and gas piston components. This added layer of protection means that the rifle may be fired with corrosive surplus ammunition without the worry of damage to the gun, and without the need to immediately clean the rifle after every trip to the range.
The unique Melonite treatment applied to the barrel surface-hardens the metal, extending barrel service life by reducing friction in the bore and lessening bore surface wear. Also referred to as Nitriding, this treatment produces an extremely hard, slick surface on steel that resists carbon adhesion and increases corrosion resistance, making for easier cleaning and maintenance. Nitriding converts the steel's surface without any build-up, retaining all of the benefits of traditional chrome lining without suffering the accuracy degradation commonly encountered due to uneven application of chrome inside the barrel's bore.
All of Adams Arms uppers feature a short stroke gas piston operating system, which prevents hot gas and debris from being directed back into the action. The result is a rifle that runs cooler, cleaner and more reliably than those employing the standard direct gas impingement system of operation. Upper comes complete with bolt carrier group, charging handle assembly, M4 handguards, picatinny rail gas block, flash hider, Wolff extra power hammer spring.
Technical Information:
Upper Receiver: A3 Flat-Top, Forged Barrel: 16" M4 Contour, Chrome Moly, Melonite Treated Twist: 1 in 8" Chamber: 5.45x39
mm Russian Flash Hider: A2, Melonite Treated Gas System Length: Carbine, Piston Operated Handguard: Polymer M4-Style Sights: None, Picatinny Rail Gas Block Weight: 4.19 Lbs Additional Info: Ion-Bonded Bolt
Asking Price: SOLD!!!
This item is brand new! I dont have pics but will try to post some tomorrow. A quick interenet search for "Adams Arms 5.45x39 standard upper" will give you pictures of this item.
Please PM for any questions or offers. Located in IE Fontana, San Bernardino, Riverside areas.
The unique Melonite treatment applied to the barrel surface-hardens the metal, extending barrel service life by reducing friction in the bore and lessening bore surface wear. Also referred to as Nitriding, this treatment produces an extremely hard, slick surface on steel that resists carbon adhesion and increases corrosion resistance, making for easier cleaning and maintenance. Nitriding converts the steel's surface without any build-up, retaining all of the benefits of traditional chrome lining without suffering the accuracy degradation commonly encountered due to uneven application of chrome inside the barrel's bore.
All of Adams Arms uppers feature a short stroke gas piston operating system, which prevents hot gas and debris from being directed back into the action. The result is a rifle that runs cooler, cleaner and more reliably than those employing the standard direct gas impingement system of operation. Upper comes complete with bolt carrier group, charging handle assembly, M4 handguards, picatinny rail gas block, flash hider, Wolff extra power hammer spring.
Technical Information:
Upper Receiver: A3 Flat-Top, Forged Barrel: 16" M4 Contour, Chrome Moly, Melonite Treated Twist: 1 in 8" Chamber: 5.45x39
mm Russian Flash Hider: A2, Melonite Treated Gas System Length: Carbine, Piston Operated Handguard: Polymer M4-Style Sights: None, Picatinny Rail Gas Block Weight: 4.19 Lbs Additional Info: Ion-Bonded Bolt
Asking Price: SOLD!!!
This item is brand new! I dont have pics but will try to post some tomorrow. A quick interenet search for "Adams Arms 5.45x39 standard upper" will give you pictures of this item.
Please PM for any questions or offers. Located in IE Fontana, San Bernardino, Riverside areas.
