FAB Defense M-16 Carbine Length Aluminum Quad Rail - FX-NFR
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Fab Defense
Overview
The FAB Defense M-16 Carbine Length Aluminum Quad Rail is designed to enhance the versatility of your AR-15 by providing a robust 6.96-inch handguard with a carbine gas system length. Constructed from 6061-T6 aluminum, this handguard features a Picatinny mounting interface, allowing you to easily attach various accessories and optics for a customized shooting experience. This handguard is commonly found in builds that prioritize modularity and accessory compatibility, making it a popular choice for tactical and competitive applications.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the FAB Defense M-16 Carbine Length Aluminum Quad Rail - FX-NFR to a build in June 2026.
It was in stock most days in September 2026, and today only Optics Planet has it in stock. It dipped to $137.49 at Optics Planet for a stretch in September 2026, under its usual $146.99 to $156.49, so sales do come around. Buying today, the lowest price is $120.49 at Optics Planet, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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