The Shield Arms SA-15 Stripped Lower Receiver (part no. SAO-15) is a black anodized aluminum lower chambered for .223 Remington/5.56 NATO builds, built by Shield Arms as the standard non-folding version of its SA-15 lineup. Shield Arms machines it as a semi-automatic-only civilian receiver and ships it stripped, so builders can pick their own lower parts kit, buffer, and stock. This is the fixed, non-folding configuration; Shield Arms also offers a side-folding variant in the same lineup for builders who want that feature instead.

Key Specifications

• Chambered for .223 Remington/5.56 NATO AR-15 pattern uppers.
• Machined from aluminum with a black anodized finish.
• Built to Semi-Auto AR-15 pattern specifications.
• Non-folding configuration, distinct from Shield Arms’ side-folding SA-15 variant.
• Weighs approximately 0.8 pounds for shipping.
• Ships as a stripped lower receiver, ready for your parts kit and stock.
• Machined from 7075-T6 billet aluminum for a strong, precision-fit receiver.
• Features a beveled magazine well feed lip for smoother, faster magazine changes.
• Weighs approximately 0.8 pounds bare.

Frequently Asked Questions

Is this the folding or non-folding version? This is the fixed, non-folding configuration of the SA-15 lower.

What caliber is this lower built for? It is chambered for .223 Remington/5.56 NATO AR-15 pattern uppers.

Does it ship with internal parts? No, it ships stripped and requires a lower parts kit, buffer, and stock to complete.

Buy the Shield Arms SA-15 Stripped Lower Receiver

Build on a proven Shield Arms receiver. Browse more AR-15 lower receivers and order from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.