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ASG Sportline ArmaLite M15 ARMS S.I.R. System M4 Airsoft AEG Rifle

ID: 50470 (AEG-ASG-50087)
4.4 stars, based on 5 reviews
ASG Sportline ArmaLite M15 ARMS S.I.R. System M4 Airsoft AEG Rifle
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ASG Sportline ArmaLite M15 ARMS S.I.R. System M4 Airsoft AEG Rifle


  • Fully Licensed by ArmaLite and A.R.M.S.
  • Engraved S.I.R. rail system with ArmaLite/S.I.R. Trademarks
  • Lightweight polymer upper/lower receiver
  • Full metal outer barrel and gearbox
  • Engraved unique serial numbering
  • Front sight post w/ bayonet lug
  • 6-Position retractable LE stock with sling mount
Length: 760mm-845mm, Adjustable
Weight: ~2721g
Inner Barrel: 363mm
Magazine Capacity: 360rd Hi-Capacity. Works with Tokyo Marui, Matrix and other compatible M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 355~365 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2, Full Metal
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine, Foregrip
Battery: 9.6v Butterfly Type recommended (Battery not included)
Hopup: Yes, Adjustable

Manufacturer: ASG (Licensed by ArmaLite Inc)

Things you may need to get started:
    Battery and Charger – Required to power your AEG; use a high quality battery and charger for best results.

    Spare Magazines – Stay in the fight longer by bringing more ammo with you.

    BBs – High quality precision 6mm BBs recommended; Use 0.20g – 0.25g BBs for best results.

    Silicone Oil – Basic cleaning and lubrication maintenance help keep your Airsoft AEG in top working order.

ASG Limited Manufacturer Warranty:

This Sportsline airsoft gun is backed by a 9 month limited warranty from ActionSportGames. Should this airsoft gun fail due to a defect in material or workmanship during the warranty period, ActionSportGames will repair or replace it, free of charge. Please see the included warranty card for warranty details.

FPS Range: 355-365

5 Customer Reviews

(Write a review)

by Jessie C. on 07/20/2017
"Had it for about three months now and besides cracking in the middle of the reciever because I ran almost straight into a tree, it is a great gun. Got the matrix battery and it works fine with it nice and light. Hop up style is a little simple but effective. Great internals haven't had a jam even after repeated operator slides. Solid 8 out 10 for a beginning gun! Already looking for upgrade though.
by Justin L. on 02/08/2016
"This gun is AMAZING. Even when put at about 80ft from A target i was able to accurately land shots on target all though they were behind thick shrubbery
by Joshua K. on 11/29/2015
"I've had this gun for around 5-6 months. I must say, it is an amazing first gun for any new airsofter. Sturdy build, good hop-up, great feed, and amazing range and accuracy. About a month or two ago, my gearbox completely stopped shooting. It may have been because I left it out when it rained while I was out on the field and forgot to shut my case. (Whoops)

One problem I had with it was that full auto doesn't work, it would fire a few shots and stop and you would have to pull the trigger again.

Great accuracy
Good feeding and hop up
Great rail system

Too light for my liking (can be a pro for a few)
Stock became wobbly and eventually fell off, had to screw it back on and it was all good afterwards.

Overall I give it 4/5 stars. Amazing starting gun for the price. If you really are looking to make airsoft a hobby you'll do a lot, look for a bit more expensive gun.

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