LUTH A1 C7 5.56 Slick-Side Retro Complete Upper 20″ BLK

This A1 C7 Retro Complete Upper Barrel Assembly seamlessly merges the iconic A1 aesthetics with contemporary performance enhancements. At its core is a robust 20″ chrome-lined, 1-7 twist barrel, designed for long-lasting durability and accuracy, finished in manganese phosphate for exceptional resistance against corrosion while retaining a vintage military appearance. The barrel is paired with a .625″ non-F marked front sight base (FSB), staying true to the A1 era’s precision while maintaining practical functionality. The upper receiver is a C7-style complete upper receiver, featuring A1 Rear sight with a built-in brass deflector, bridging classic looks with enhanced practicality. An A2 charging handle provides easy manipulation, while the A2 hand guard, available in either black or OD green, offers modern durability with a nod to the timeless design. For effective muzzle control, the upper is finished with an A2 flash hider, minimizing muzzle flash while enhancing shooting stability. Features: 20″ 1-7 twist barrel for accuracy Chrome-lined chamber and Chrome-lined bore for wear resistance and longevity Manganese Phosphate exterior finish for enhanced corrosion resistance Complete Bolt Carrier Group (BCG)– Chrome Lined – Manganese Phosphate exterior finish Chambered in 5.56 NATO .625″ Non-F marked Front Sight Base (FSB) for a historically accurate design C7 complete upper receiver with built-in brass deflector A2 charging handle for smooth operation A2 hand guard for modern durability and heat management A2 flash hider for optimal muzzle control and reduced flash Ideal for retro rifle builders or shooters who seek to blend the classic A1 appearance with the reliability and performance of modern manufacturing. Specifications: UR-01-E3-M4 - A1-C7 Retro Upper Receiver, made from 7075-T6 Aluminum Forging BL-F20-7C 20″ Chrome Lined Pencil Barrel w/FSB (.625 Non F Marked) 1-7 Twist Rate Caliber: .223 REM Chrome lined chamber and bore Manganese Phosphate exterior finish Assembled with Front Sling Swivel FS-01 – A2 Front Sight Post (Square) A2 Delta Ring – Black A1 Rear Sight Kit (UR-21A) A2 Port Door Cover Kit (UR-05A) Teardrop Forward assist BC-A-223C – Complete Bolt Carrier Group – Chrome Bores – Manganese Phosphate exterior finish UR-19 – A2 Charging Handle – Black HG-A2 – A2 Handguard – Black BL-06-CW – A2 Crush Washer BL-06-A2 – A2 Flash Hider Informations: AT - Category B Including C.I.P. Compatible with AR-15 Lower receiver according to Mil-Spec diameter Complete the correct look with the LUTH A1 Butt Stock and A1 Pistol Grip in Black or OD Green Compatibel accessories, see under this article, accessories MADE IN THE USA