Looking to add a touch of vintage charm to your AR build? The A1 Slick Side 5.56mm Upper Receiver from Retro Arms offers the perfect balance of classic styling and modern-day durability.

This upper is a faithful throwback to the early AR-era design, featuring the iconic no-forward-assist slick-side profile that’s lighter, cleaner, and straight to the point. It’s ideal for shooters who prefer a streamlined look and function without unnecessary extras.

Precision-machined from tough 7075-T6 aluminum, it delivers outstanding strength without extra weight. The hardcoat anodized finish gives it lasting protection against wear and corrosion, keeping it range-ready for years to come.

Built for compatibility with standard 5.56mm components, this receiver is an excellent foundation for both custom retro builds and everyday rifles with a minimalist edge. It’s the kind of upgrade that turns heads at the range and performs with confidence.