FightLite Industries

FightLite DFX AR-15/M16/M4 .223 Remington/5.56x45mm NATO 12.5in Upper Receiver Heavy Short-Stroke Gas Piston 1-7 Twist 1/2x28 Manganese

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FightLite Industries FightLite DFX AR-15/M16/M4 .223 Remington/5.56x45mm NATO 12.5in Upper Receiver Heavy Short-Stroke Gas Piston 1-7 Twist 1/2x28 Manganese - Upper Receiver for AR-15 - view 1
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FightLite Industries

Overview

The FightLite DFX Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 12.5-inch barrel optimized for both .223 Remington and 5.56x45mm NATO cartridges. With a 1:7 twist rate, this upper is well-suited for stabilizing a range of bullet weights, making it versatile for various ammunition choices. Builders often incorporate this upper in compact setups intended for close-quarters engagements, where maneuverability and quick handling are critical.

Specifications

MPNDFX002
Barrel Length12.5
AssemblyComplete
PlatformAR-15
Thread Pitch1/2x28
Caliber.223 Remington
Twist Rate1:7
Receiver TypeM4

Available Merchants(2)

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$3,995.00
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BattleHawk Armory
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Build history on GunPartPicker

Builders have been adding the FightLite DFX AR-15/M16/M4 .223 Remington/5.56x45mm NATO 12.5in Upper Receiver Heavy Short-Stroke Gas Piston 1-7 Twist 1/2x28 Manganese to their builds on GunPartPicker since March 2026. All time, it ranks #750 of the 1,867 upper receivers builders have added.

It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $3,995 at Optics Planet for when it comes back.

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