The Ruger America’s 250th Anniversary AR stripped lower receiver is a limited-edition lower for builders who want a commemorative start to an AR project (brand part no. 28502). Ruger machines it from 7075-T6 forged aluminum to mil-spec tolerances and finishes it in hardcoat anodizing. A special Made in the 250th Year of American Liberty engraving on the left side of the receiver marks the anniversary. An adjustable tension screw is built in to take up play between the upper and lower receivers.

Key Specifications

• The receiver is machined from 7075-T6 forged aluminum, a strong alloy widely used for AR receivers.
• Machining holds mil-spec tolerances, which helps with fit to compatible parts and uppers.
• The finish is hardcoat anodized, a hard surface treatment that resists wear and corrosion.
• A special 250th Anniversary engraving on the left side of the receiver reads Made in the 250th Year of American Liberty.
• An adjustable tension screw removes or reduces play between the upper and lower receivers.
• The lower is sold stripped, so you choose the fire control group, buffer system and furniture.

Frequently Asked Questions

What does the 250th Anniversary engraving say? A special engraving on the left side of the receiver reads Made in the 250th Year of American Liberty.

What is this lower made of? It is machined from 7075-T6 forged aluminum to mil-spec tolerances and finished with hardcoat anodizing.

Does it help reduce upper-to-lower play? Yes. It includes an adjustable tension screw to minimize or eliminate play between the upper and lower receivers.

Buy the Ruger America’s 250th Anniversary AR Stripped Lower Receiver, Hardcoat Anodized

This stripped lower gives an AR build a commemorative foundation in forged 7075-T6 aluminum. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR-15 lowers while you are here.