A1 C7 Retro Complete Upper Barrel Assembly

Description

A1 C7 Retro Complete Upper Barrel Assembly

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 bore for wear resistance and longevity
• Manganese Phosphate exterior finish for enhanced corrosion resistance
• 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
• Complete Bolt Carrier Group (BCG)– Chrome Bores – Manganese Phosphate exterior finish
• A2 charging handle for smooth operation
• A2 hand guard (black or OD green) 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.

Includes:

• BL-F20-7C 20″ Chrome Lined 1-7 twist Pencil Barrel w/FSB (.625 Non F Marked)
  • 5.56 NATO
  • 1-7 Twist
  • Chrome lined chamber and bore
  • Manganese Phosphate exterior finish
  • Front Sling Swivel
  • FS-01 – A2 Front Sight Post (Square)
  • A2 Delta Ring – Black
• UR-01-E3-M4 – C7 Upper – Black Assembled
  • 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 – OD Green or Black
• BL-06-CW – A2 Crush Washer
• BL-06-A2 – A2 Flash Hider

SKU: BA-F20C7-7C-B — Black

SKU: BA-F20C7-7C-G — OD Green