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ASG Infinity CNC Custom Airsoft AEG Motor (Type: Long Axle / U-40000)

ID: 52203 (MO-ASG-U40-L)
4.9 stars, based on 35 reviews
ASG Infinity CNC Custom Airsoft AEG Motor (Type: Long Axle / U-40000)
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The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.


  • CNC machined aluminum front and back covers
  • CNC machined pinion steel gear
  • CNC machined stainless steel shaft
  • Silicon steel rotor
  • Precision built motor housing
  • Heat resistant rare-earth magnets
  • Enlarged motor-shaft ball-bearing stabilizers
  • High-grade silver plated wiring and larger carbon brushes for improved electrical conductivity
This is a long shaft version, rated to run at 40000 rpm. The latest high-performance motors in the ULTIMATE Upgrade Series are made with CNC machined parts for greater strength and performance, and have all been developed to include the latest technologically developments, in a continuing effort to offer a wider selection of motors allowing the discerning Airsoft player to find the optimal solution for any particular upgrade. The INFINITY CNC motors are designed, with the best features found in Airsoft motors currently on the market. The result is a motor which is at the pinnacle of what is achievable today.

Manufacturer: ASG

Size: Long Axle

Model (Type): U-40000


Material: CNC machined aerospace grade aluminum, CNC machined chromoly
Turns Per Armature: 14T
Armature Wire size: 0.85mm
Type: Long

About ASG

ActionSportGames is a worldwide leader in the business of replica firearms and accessories manufacturing including Airsoft guns, Airguns, CO2 guns and firearms replicas. We specialize in 1:1 scale replica guns and accessories for fun, action, sports, entertainment and collection. Today were proud to be recognized as the innovator and manufacturer of the CZ EVO3 A1 AEG and having introduced several Airsoft versions of this popular Airsoft gun to the market.One of our goals is to become the preferred supplier in the firearms replica business through worldwide license agreements, quality brands and premium service before, during and after sales.

35 Customer Reviews

(Write a review)

by Blake P. on 01/12/2023
"Got one of these in the high torque version for my CYMA platinum m4 and holy crap. Not to say the CYMA stock motor was bad, it was far from it actually, but this one is miles ahead of anything else I've used. Incredibly snappy, and also slightly quieter than most stock motors as well.

I swapped this into a friends A&K sr25 running an m150 spring to see how it would do and it didn't even hesitate. Same snap as if it was an m110.

If you want the best of the best without taking the jump to a brushless motor, this is it. Easy 5 stars.
by Jonathan S. on 06/06/2022
"Ok so I got one of these for my ssg build and i was BLOWN away it is sooooooooo clean i got the 22k one and it brought up my rof and my fps buy alot and it is sooo snappy for build info i used a g&g cm16 withemg shs gears a gate titan gate nova trigger and this moter. out of all my friends now with just this moter i have the best gun if u build what i did it is easly more snappy and clean then a p*. get this moter
by Spencer H. on 04/03/2022
"Swapped my Arcturus stock motor (19,000 RPM) with the 22000. Now I can pull back any spring. I get 500 fps easy. The quality is there; thick wiring. It's the motor I recommend to people.

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