The FN Lower for M4/M16 is a high-quality, mil-spec lower receiver manufactured by FN America, a trusted supplier to U.S. military and law-enforcement programs. Built to exacting standards, this stripped lower provides a reliable foundation for AR-15 and M4-style rifle builds.
Machined from durable aluminum and finished in a black hard-coat anodizing, this lower receiver delivers excellent strength, corrosion resistance, and long-term durability. Designed to accept standard AR-15/M4 components, it is ideal for professional builders, armorers, and enthusiasts seeking FN-grade quality for duty, range, or custom rifle applications.
Whether completing a new build or replacing an existing component, the FN M4/M16 lower offers proven performance backed by one of the most respected names in modern firearms manufacturing.
Specifications
| UPC/EAN | 845737017361 |
|---|---|
| Manufacturer Part Number | 20-100821 |
| Brand | FN America |
| Optics Ready | No |
| Gun Color/Finish | Aluminum/Black |
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