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
2 options
- 12.5", this page
- 16.25"out of stock
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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
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
2 options
- 12.5", this page
- 16.25"out of stock
August 2026 on GunPartPicker
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 ranked #291 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #567 of the 1,566 upper receivers builders have added.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $3,995 at Optics Planet for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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