When embarking on a custom AR build, selecting premium components is crucial for achieving optimal performance and reliability. One such component is the FN stripped upper receiver, renowned for its precision engineering and compatibility with various AR configurations.
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Understanding the FN Stripped Upper Receiver
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An FN stripped upper refers to an upper receiver manufactured by FN America, a subsidiary of the esteemed Belgian firearms company FN Herstal. A “stripped” upper means it lacks internal components like the bolt carrier group and charging handle, allowing builders to customize these elements to their specific preferences.
Key Features of FN Stripped Uppers
- Mil-Spec Construction FN’s stripped uppers are crafted to military specifications (Mil-Spec), ensuring compatibility with standard AR-15 parts and accessories. This adherence to Mil-Spec standards guarantees a precise fit and reliable function in various build configurations.
- High-Quality Materials Manufactured from high-grade aluminum alloys, FN uppers offer a balance of strength and weight savings. The use of materials like 7075-T6 aluminum enhances durability while maintaining a manageable weight for the firearm.
- Anodized Finish The receivers feature a Type III hard-coat anodized finish, providing resistance against corrosion and wear. This finish not only extends the lifespan of the component but also offers a sleek, professional appearance.
- Precision Machining FN employs advanced machining techniques to ensure tight tolerances and consistent quality. This precision machining contributes to improved accuracy and overall firearm performance.
Benefits of Choosing an FN Stripped Upper
- Customization Flexibility: Starting with a stripped upper allows builders to select specific components that align with their performance goals and aesthetic preferences.
- Quality Assurance: FN’s reputation for excellence in firearms manufacturing provides confidence in the reliability and durability of their products.
- Enhanced Performance: The meticulous engineering of FN uppers can contribute to improved accuracy and functionality in the completed firearm.
Considerations When Building with an FN Stripped Upper
- Component Compatibility Ensure that all chosen parts, such as the barrel, handguard, and bolt carrier group, are compatible with Mil-Spec dimensions to guarantee proper fit and function.
- Assembly Expertise While assembling an AR platform can be undertaken by enthusiasts, it requires a certain level of technical knowledge and the appropriate tools. Novice builders should consider seeking guidance or professional assistance to ensure safety and reliability.
- Legal Compliance Be aware of federal, state, and local regulations regarding firearm assembly and ownership. Some regions may have specific laws pertaining to homemade firearms or certain configurations.
FAQs
- What is the advantage of starting with a stripped upper receiver?
- A stripped upper allows for complete customization, enabling builders to select each component based on their specific requirements and preferences.
- Are FN stripped uppers compatible with all AR-15 lower receivers?
- Yes, FN stripped uppers are designed to Mil-Spec standards, ensuring compatibility with most AR-15 lower receivers.
- Do FN stripped uppers come with a forward assist and ejection port cover?
- No, as stripped uppers, these components are not included, providing the builder the option to install preferred parts.
- Is professional assembly required when building with a stripped upper?
- While not mandatory, professional assembly is recommended for those unfamiliar with AR platform assembly to ensure safety and proper function.
- Where can I purchase an FN stripped upper receiver?
- FN stripped uppers are available through authorized FN dealers, firearms retailers, and reputable online marketplaces.
