FN 15 Military Collector M4 5.56x45mm NATO Stripped Lower Receiver, Black Overview: The FN 15 Military Collector M4 Lower Receiver is a premium factory-original component designed for AR-platform rifle builds and restorations. Precision-machined from durable aluminum and finished with a hard anodized black coating, this lower receiver delivers the quality, reliability, and authentic military-inspired styling that FN is known for. It is compatible with standard M4 and M16 platform components, making it an excellent foundation for custom rifle builds. Key Features: Factory FN Component: Genuine FN lower receiver built to FN's exacting manufacturing standards. M4/M16 Compatibility: Designed to fit standard M4 and M16 platform components. Aluminum Construction: Lightweight and durable for long-lasting performance. Anodized Finish: Black anodized coating enhances corrosion and wear resistance. Military Collector Series: Authentic military-inspired styling for collectors and enthusiasts. Precision Manufacturing: Engineered for reliable fit and compatibility with mil-spec components. Specifications: Manufacturer: FN Product Type: Lower Receiver Model: FN 15 Military Collector Firearm Compatibility: M4 / M16 Caliber: 5.56x45mm NATO Material: Aluminum Finish: Anodized Color: Black Weight: 0.55 lbs Applications: AR Rifle Builds: Ideal foundation for custom M4 and M16-style rifle projects. Replacement Component: Suitable for repairing or upgrading compatible rifles. Military Collecting: Excellent for military-inspired firearm builds and collector projects. Sport Shooting: Designed for dependable performance in recreational and training applications. Additional Features: OEM FN Quality: Manufactured by FN for dependable fit, finish, and reliability. Lightweight Design: Aluminum construction minimizes weight without sacrificing durability. Corrosion-Resistant Finish: Hard anodized coating protects against wear and harsh environmental conditions. MPN: 20-100821UPC: 845737017361 Please check out our special deals on 5.56mm ammo.