Cybergun / ZCI Hopup Assembly — Featherweight FN M249 Series (OEM Drop-In Replacement)

Replace worn parts and restore field-ready performance with the Cybergun / ZCI Hopup Assembly made specifically for the Featherweight FN M249 series airsoft AEG LMGs. Engineered as a factory-direct OEM replacement, this hopup assembly delivers reliable BB feeding, consistent hop engagement, and the rugged fitment your support gun needs — without the hassle of modification or reworking.

Purpose-built for Featherweight FN M249 LMGs

This hopup assembly is designed only for the Featherweight series of FN M249-style light machine guns. The part matches the exact dimensions and mounting profile used in those models, so installation is straightforward: drop it in and go. If you run a Featherweight M249 and the hopup is worn, damaged, or out of spec, this is the direct replacement that restores factory performance.

Durable Injection-Molded Polymer Construction

Manufactured from high-quality injection-molded polymer, the assembly balances light weight with excellent impact resistance. The polymer body resists cracking and dimensional wear that metal-adjacent parts can suffer in crash or rough-handling scenarios. That means durable, consistent hop-up performance across many seasons of play while avoiding unnecessary weight addition to your LMG.

Factory Direct OEM Quality — Fit, Function, Confidence

As a factory-direct OEM replacement part from Cybergun / ZCI, this hopup assembly meets the original specifications and tolerances used in Featherweight FN M249 production. That OEM lineage gives you confidence that the assembly will:

• Align perfectly with the internal gearbox and barrel assembly

• Provide the expected BB trajectory adjustment range

• Maintain smooth, predictable hop-up wheel operation

Using an OEM replacement reduces the need for trial-and-error fitting and preserves the resale value and integrity of your replica.

Seamless Drop-In Replacement — Little to No Modification

One of the biggest headaches with parts replacement is fitment. This hopup assembly is designed for drop-in installation, meaning most users will experience little to no modification or trimming. Whether you’re doing a field swap or workshop maintenance, the process is fast and clean: remove the old assembly, drop the OEM Cybergun / ZCI unit in place, reassemble, and tune your hop-up wheel to match your BB weight and range.

Who This Is For

• Owners of Featherweight FN M249 series AEG LMGs needing a direct replacement hopup assembly.

• Techs and field armorers who prefer OEM parts for reliable, repeatable results.

• Players who value quick maintenance and minimal downtime during events.

If your platform is not a Featherweight M249, this assembly is not guaranteed to fit — always confirm model compatibility before purchasing.

Easy Maintenance & Long-Term Value

Because hopup assemblies are wear items that take most of the action’s friction and stress, replacing them with a factory-quality unit is a cost-effective way to extend the life of your LMG. The injection-molded polymer resists dirt buildup and allows for easy cleaning; paired with periodic lubrication of moving parts, this replacement helps keep feed consistency and accuracy stable match after match.

Key Features — At a Glance

• Fitment: Featherweight FN M249 series AEG LMGs (model-specific)

• Construction: Durable injection-molded polymer

• Type: Factory direct OEM replacement part (Cybergun / ZCI)

• Installation: Drop-in replacement — little to no modification required

• Purpose: Restores hop-up engagement, BB feeding, and factory spec performance

Keep Your LMG Performing Like New

A well-functioning hopup assembly is essential for consistent range and accuracy — especially on belt-fed LMGs where feed reliability is paramount. The Cybergun / ZCI Hopup Assembly for Featherweight FN M249 Series gives you the OEM fit, rugged construction, and straightforward installation you need to keep your support weapon working flawlessly on the field. Replace the worn part the right way — factory quality, built for the Featherweight M249.