Classic Army AR4 SBR Nylon Fiber M4 AEG w/ ECS MOSFET

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Classic Army prides itself on producing high performance airsoft guns with long range accuracy, and creating extremely accurate replicas of models held in high regard by military and law enforcement agencies. The AR4 SBR Nylon Fiber rifle by Classic Army is the newest AEG in their extensive arsenal and is no exception when it comes to top of the line quality, built with next level internals and top notch externals. The AR4 SBR rifle is the perfect choice for those looking for a high grade CQB weapon or long range rifle ready for any battlefield. This rifle features a 5” URX top rail and M-LOK section on the handguard, allowing players to add their favorite accessories including optic sights and foregrips. The high quality nylon fiber upper and lower receivers offer a lightweight yet extremely durable construction.

Ambidextrous magazine release and charging handle ensure any player, despite being left or right handed, can operate this rifle without limitations. The multi-position adjustable rear stock allows for easy alteration of overall length for players of all sizes to operate this rifle comfortably, and makes it quick and easy to adapt from CQB to long range engagements. The flip-up High Visibility front and rear iron sights are perfect for zeroing in your targets on the spot, or can be flipped down to make room for your choice of optic accessory. The full metal Version 2 Gearbox features an upgraded torque motor for peak performance, and 9mm bearing & bushing combination to ensure smooth and reliable gear change and requires less maintenance due to heavily decreased levels of wear and tear. The gearbox also comes outfitted with a programmable MOSFET unit to program the trigger to 3 or 5 round burst, and features a Low Battery warning to let you know when it's time to switch out batteries so you're not stuck on the battlefield with a dead rifle.

This rifle is also outfitted with low resistance wiring to protect trigger contacts and reduce shortages power loss. The integrated Quick Spring Change System allows the player to quickly and easily modify or adjust the power level and rate of fire by upgrading the spring. By combining a rugged Nylon Fiber build with the power and accuracy needed to out-gun the competition, Classic Army has created an AEG that will surely resonate with players of all skill levels and play styles.


  • 5” URX Rail System
  • M-LOK Section on Handguard
  • Three Prong Flash Hider w/ QD Threads
  • Flip-up Front and Rear Sights
  • Lightweight, Durable Nylon Fiber Construction
  • Adjustable Stock
  • Ambidextrous Charging Handle
  • Full Metal V2 Gearbox
  • Quick Change Spring System
  • MOSFET Protected Trigger Contacts
  • Programmable Electronic Control System (ECS) - 3 /5 Round Burst
  • Motor Protection & Low Battery Detection
  • 9mm Bushing & Bearing Set
  • Adjustable Hop-up
  • 90 Day Limited Warranty Through Classic Army
LiPO Ready:
Power Source:
Canada Compliant:
300 FPS w/ 0.20g BBs
Battery & Charger Included:
Rail Type:
Battery Type:
9.6v NiMH Nunchuck Battery
10 lbs
Full Metal V2 Gearbox
Quick Change Spring:
Included Magazine:
300 Rounds
Classic Army
Fire Modes:
Safe, Semi Auto, Full Auto
Yes - Adjustable
30 Day Return / 30 Day Warranty

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