ICS SIG 551 MRS RIS AEG Airsoft Rifle, Black

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ICS is world renowned for developing, designing, and manufacturing superior AEGs. The SIG 551 MRS rifle continues the trend of authenticity by being constructed with a fully stamped steel billet style receiver, forged lower receiver, and high-quality full metal internals. The full metal extended handguard comes ready for all standard picatinny accessories such as optic sights, lasers, flashlights, or foregrips. A unique 40 round magazine features a small viewing window with mock rounds,to give the impression of a fully loaded real steel rifle magazine. Alongside the full steel frame and receiver, a durable polymer was used for the side-folding stock and pistol grip for maximum grip and stability while remaining lightweight. The specially designed low profile ergonomic pistol grip features textured finger grooves for a more comfortable feel, while greatly reducing fatigue when carrying this heavyweight replica. The side-folding stock features a fully adjustable/ removable cheek rest for players of all sizes, and can easily alter the overall length of the rifle for CQB or long range engagements. This rifle is front wired which means the recommended 9.6v battery power source is housed in the handguard and connected to the rifle using small Tamiya plugs. An integrated ICS CFS metal front sight allows players to quickly and accurately zero in their targets without the need for an additional optic accessory.

Internally, the SIG 551 MRS rifle from ICS features their esteemed metal reinforced, fully upgradable Version 2 split gearbox. High-quality bushings and bearings ensure rapid and smooth gear change which results in more responsive fire with every trigger pull. An integrated inline MOSFET protects trigger contacts from shortages or wear and tear for long lasting durability. Ambidextrous magazine release and fire selector ensures both left and right handed players can operate this rifle with no restrictions. Utilize the adjustable hop-up to account for various wind conditions and target range, to get the perfect shot every time. The already extended barrel system provides optimal accuracy and range, and the 390 FPS ensures even those hard to reach targets aren't safe. By combining a full metal build with the power and accuracy to take out the competition, ICS has created a full size replica that is sure to resonate with airsoft enthusiasts of all play styles.


  • Color: Black
  • 390 FPS (0.20g BB)
  • Magazine: 300rd
  • Weight: 6.7lbs
  • Inner Barrel: 458mm
  • 9.6v Stick Battery Recommended (NOT INCLUDED)
  • Full Stamped Steel Receiver / Forged Steel Lower Receiver
  • Laser Engraved ICS Trademarks
  • Full Steel RIS Handguard w/ Anodized Finish
  • Side-folding Stock
  • Rubberized Butt Plate
  • Removable Cheek Rest
  • Front Wired
  • 14mm Negative Barrel Thread
  • Ergonomic Low Profile Pistol Grip
  • Full Metal Version 2 Split Gearbox
  • Inline Trigger MOSFET
  • ICS POM Reinforced Piston w/ Steel Teeth
  • Ported Piston Head
  • M120 Spring
  • Quick-Change Spring System
  • Selector Switch Releases Spring Tension
  • Flat Trigger w/ Enlarged Trigger Guard
  • Functional Charging Handle
  • ICS CFS Fixed Front Sight
  • Full Scale Replica
  • Ambidextrous Magazine Release
  • Ambidextrous Buffer Tube Sling Mount
  • Full Metal Barrel Assembly
  • Adjustable Metal Hop-up
  • Safe / Semi / Full Auto


Note: Battery and Charger DOES NOT come with purchase of rifle



Power Source:
390 FPS with 0.20g BBs
Gun Type:
30 Day Return, 45 Day Warranty

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