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

SKU: ASG-50087 ASGOut of stock Map ProtectedPrice is map protected. Coupon(s) may not be applied to this item.

  • - Officially licensed by Armalite and A.R.M.S.
  • - Licensed S.I.R. rail system with trademarks
  • - Lightweight polymer upper/lower receiver
  • - Full metal Version 2 gearbox
  • - Full metal outer barrel, buffer tube
  • - One-piece polymer hop-up unit
  • - Rear ARMS adjustable flip-up sight
  • - Front sight post w/ bayonet lug
  • - Engraved unique serial numbering
  • - Easy-access front battery storage
  • - Retractable LE stock w/ sling mount
  • - Realistic chrome mock gas tube


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

The NEW Sportline Armalite M15 AEG by ASG, made famous by U.S. Special Forces, features a full metal gearbox and the sought-after S.I.R. system fully licensed by ARMS! The ventilated rail systems is unique to most M4s and allows you to mount aftermarket accessories. Its monolithic top rail is also raised, making it easier to aim through the sights or a scope when wearing a full face mask. The last part of the ARMS S.I.R. system is the rear sight, which sits flush against the rail when flipped down for an unobstructed view when using other sighting systems. The full metal gearbox, which is compatible with Version 2 parts (including pistons, gear sets, and hop-up units) also ensures that this airsoft M15 AEG is ready to hit the field, shooting up to 360 FPS with 0.20g seamless BBs. For improved durability and unlike other polymer AEGs, this airsoft M4 is equipped a full metal outer barrel and buffer tube. If you’re looking for a solid AEG that features a lightweight build, runs officially licensed trademarks, and sports a modular rail system, there’s no turning back on the ASG Armalite M15 ARMS S.I.R. System AEG!

Ammo type: Seamless 0.20g or heavier (0.23g, 0.25g, 0.26g, 0.28g, etc) BBs. For maximum performance and accuracy, Airsoft Megastore recommends GoldenBall ProSlick BBs which carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Battery Charger Recommendation: Although this fully automatic airsoft rifle comes with a standard wall charger to charge the battery, Airsoft Megastore recommends the use of a smart charger to avoid overcharging the battery(overcharged batteries may cause decreased airsoft gun performance and may shorten battery life significantly). Smart chargers not only shorten charge time significantly (up to 800% faster charging), but more importantly, also automatically shut off once the battery is fully charged to avoid overcharged batteries.

In the Box

Airsoft rifle

350rd hicap magazine

tactical foregrip

instruction manual


Operation Electric Automatic
Build Polymer Receiver, Motor Grip, Rail System, Stock / Metal Receiver, Outer Barrel
Firing Modes Semi-automatic, Full-automatic, w/ Functional Safety
Muzzle Velocity 355 – 365 FPS (w/ 0.20g BBs)
Gearbox Full Metal Version 2
Magazine 350rd High Capacity (gear wind-up)
Battery 9.6V Nunchuck (not included)
Inner Barrel Length 363 mm
Hop-Up Adjustable
Weight 6 lbs
Overall Length 30.25" in. / 33.25" in. (Retracted / Extended)

California Proposition 65 Warning: Cancer and Reproductive Harm -

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