Shield Arms SA-15 Folding Complete Lower Receiver .223/5.56 NATO B5 Systems Bravo Stock - Black Anodized Receiver

The Shield Arms SA-15 is a complete folding lower receiver for the AR-15 platform, engineered around an integrated folding hinge machined directly into the receiver rather than added as a separate adapter. The lower is cut from 7075-T6 billet aluminum and finished in black anodized, paired with a B5 Systems Bravo collapsible stock and an H2 proprietary buffer for a compact, travel-ready AR-15 lower.

Chambered for .223 Remington / 5.56x45mm NATO, this unit is built to feed from standard AR-15 magazines and accepts most mil-spec upper receivers, giving shooters a folding AR-15 setup without the bulk or wobble of typical adapter-style systems. The built-in folding mechanism drops overall length significantly for transport and storage while retaining the rigidity of a solid billet lower. It ships equipped with Shield Arms' EDT trigger.

Manufactured in the USA and backed by Shield Arms' lifetime warranty, this serialized complete lower ships ready to drop onto a compatible upper. No magazine is included.

DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.