FAB Defense FXNFR Quad Rail Carbine Length M16 Picatinny Black

The FAB Defense FXNFR NFR Quad Rail transforms standard carbine-length M16/AR-15 platforms into versatile tactical systems with four continuous Picatinny rails. This drop-in handguard replacement eliminates the need for permanent modifications while providing maximum accessory mounting real estate.

What Makes This Different

Unlike standard plastic handguards, the FXNFR features aircraft-grade aluminum construction with MIL-STD-1913 Picatinny rails on all four sides. The free-floating design reduces barrel harmonics interference while maintaining zero shift during rapid fire sequences. Heat dissipation channels machined into the aluminum body prevent thermal buildup during extended shooting sessions.

Key Features

• Four continuous MIL-STD-1913 Picatinny rails for maximum accessory compatibility
• Aircraft-grade 6061-T6 aluminum construction with Type III hard anodizing
• Free-floating barrel design eliminates contact pressure points
• Drop-in installation requires no permanent modifications to rifle
• Integrated heat dissipation channels prevent thermal expansion issues
• Compatible with carbine-length gas systems and standard barrel nuts
• Accepts standard sling swivels and QD attachment points

Field testing demonstrates consistent accuracy maintenance through 300+ round strings without point-of-impact shift. The quad rail configuration accommodates tactical lights, laser designators, vertical grips, and bipods simultaneously. Law enforcement agencies report reliable performance in adverse weather conditions including sand, mud, and saltwater exposure.

Technical Specs

• Length: 7 inches (carbine gas system compatible)
• Weight: 12.5 ounces
• Material: 6061-T6 aluminum with Type III hard anodizing
• Finish: Matte black anodized
• Rail specification: MIL-STD-1913 Picatinny on all four sides
• Compatibility: M16/AR-15 carbine length gas systems
• Installation: Drop-in replacement for standard handguards
• Country of origin: Israel

The FXNFR represents proven Israeli military engineering adapted for civilian and law enforcement use. Professional armorers stock this rail system for departments requiring reliable accessory mounting without permanent rifle modifications.