Airsoft Upgrades

ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE®

Brand: ArcturusCategory: Carbines & Assault Rifles3 retailers

Price: $461.99 — In stock at 2 retailers.

Prices last checked August 20, 2026 across 3 retailers.

Overview The ARCTURUS ARM Series is a high-performance line featuring Mil-Spec style full metal receiver and handguard rails. It built with a rotary Hop-Up unit, a QPQ-treated 6.02mm precision steel inner barrel, and a quick-change spring Gearbox for accuracy and ease of use. Externally, it built with a die-cast aluminum receiver, CNC handguard rails, QPQ steel mid-cap magazine, and CNC muzzle brake for durability and Mil-Spec aesthetics. The replica is powered by the latest ARCTURUS V2 Hybrid FE Gearbox. It delivers fast trigger response, adjustable trigger sensitivity, and multiple firing modes including 3-round burst and binary. The Gearbox is compatible with GATE, PERUN, and other TM-spec Version 2 compatible ETUs. Specification Build Material: Polymer / Aluminum / Steel Gearbox: Version 2 FE ETU w/ Quick Change Spring Gears: 18:1 CNC Gear Set Motor: Anvil Drive 35K Brushless Motor Magazine: M4/M16 Metal 30/135Rds Variable-Cap EMM Magazine (QPQ) Overall Length: 773-852 mm (30.4-33.5 inch) Hand Guard Length: 179 mm (7 inch) Inner Barrel Length : 380 mm (15 inch) Outer Barrel Length: 376.5 mm (14.8 inch) Weight: 2320/2540g (5.1/5.6 lbs) System: Electric Gearbox Battery Type: 7.4V or 11.1V Li-ion/Lipo Deans (Not Included) Firing Mode: Semi Auto/ 2rd Burst (Programmable) / 3rd Burst (Programmable) / Binary (Programmable) / Full Auto / Safety Hop-Up: ARCTURUS RS™ Reinforced Polymer Precision Rotary Hop-Up Unit Hand Guard: AL CNC w / Hard Anodizing Receiver: AL Die-Casting Forged Style AR Receiver Stock: ARC LE Mil-Spec w/ Mil-Spec Buffer Tube Muzzle Velocity: Approx. 400 FPS( +/- 10% ) Package Includes ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® ARCTURUS M4/M16 Metal 30/135Rds Variable-Cap EMM Magazine (QPQ) FSP w/ Mil-Spec Style Flip Up Iron Sight Armor Tool User Manual ETU Guide Card Cleaning Rod

ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® price comparison: the lowest price is $461.99 at Arcturus Tactical, and the median across 3 tracked listings is $461.99.

Compatible with: M4/AR, AEG

See all M4/AR magazines & fitment →

Which buckings fit AEG? Compare fitment & degrees →

Which inner barrel fits AEG? Compare length, bore & prices →

Which nozzle fits AEG? Compare fitment & prices →

Which hop-up unit fits AEG? Compare fitment & prices →

Where to buy the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE®: prices at 3 retailers

  • Xtreme Airsoft: $461.99 — Out of Stock
  • Arcturus Tactical: $461.99 — In Stock
  • MOS Manufacture: $461.99 — In Stock

Frequently asked questions about the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE®

How much does the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® cost?
The ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® ranges from $461.99 across 3 retailers. The lowest current price is at Arcturus Tactical. Prices are updated regularly from each store's live catalog.
Where can I buy the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE®?
The ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® is currently in stock at 2 retailers including Arcturus Tactical, MOS Manufacture. We track availability across 3 airsoft stores and update stock status regularly.
What is the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® compatible with?
M4/AR, AEG
Is the ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® a good carbines & assault rifles upgrade?
The ARCTURUS MS M4A1 Block 1 Carbine 14.5" Brushless AEG FE® by Arcturus is listed in our Carbines & Assault Rifles category and is priced from $461.99. We aggregate prices from 3 retailers so you can compare and find the best deal. Check the price comparison table above for current pricing from each store.

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