FN America M4 Military Collector Stripped AR-15 Lower Receiver
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FN America
Overview
The FN America M4 Military Collector Stripped AR-15 Lower Receiver is a forged lower designed for the AR-15 platform, made from durable 7075-T6 aluminum with a hardcoat anodized finish for increased resistance to wear. This lower receiver features non-ambidextrous controls and is compatible with multi-caliber builds, making it a versatile choice for various configurations. Builders often use this lower in multi-caliber setups, allowing for a wide range of customization options.
Specifications
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August 2026 on GunPartPicker
FN America M4 Military Collector Stripped AR-15 Lower Receiver ranked #112 of the 507 lower receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #269 of the 956 lower receivers builders have added.
It was hard to find in August 2026, in stock on only 3 of the 26 days we checked, and today none of the 5 retailers we track has it in stock right now. The best price drifted down from $144 to $129.99 over August 2026 without a real sale. Listed prices start at $129.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Read the guide: AR-15 Lower Receiver Trends →Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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