G&P Skull Frog Keymod M4 Carbine AEG Airsoft Rifle w/ i5 Gearbox, Tan

Calculated at Checkout
420 FPS
Power Source:

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The new Skull Frog Keymod M4 AEG is the latest installment to G&Ps’ ever expanding line of high quality airsoft replicas. G&P hand assembles and fine tunes every AEG to ensure the utmost quality, earning them a top spot in the eyes of airsoft enthusiasts. Constructed from a CNC machined metal upper/lower receiver and MOTS 12” MRE Keymod handguard, this M4 replica is realistically weighted and extremely durable against the harsh elements of airsoft warfare. The MOTS 12” MRE style handguard is compatible with M-LOK accessories, and has two small picatinny/weaver rail segments. A 20mm picatinny/weaver rail is built-in to the top of the receiver and extends slightly onto the front assembly, providing ample space for the addition of an optic accessory. The polymer rear stock is fully adjustable to hit the perfect level of comfort for players of all sizes. The entirety of this rifle is coated with a weather resistant matte finish to protect from weather and chemical stains.

To match the rugged externals of this rifle, G&P fitted this rifle with the highly anticipated i5 gearbox. This new and improved full metal gearbox features an upgraded M120 motor with 8mm bearings for rapid and smooth gear change. The integrated QD quick-change spring guide makes swapping out springs a breeze once the upper receiver is removed. The i5 gearbox features many of the same innovations as standard Version 2 gearboxes, but with an integrated MOSFET unit with electronic trigger and selector, proactively preventing sensitive trigger switches and selector plates. Coming out of the box firing at 420 FPS, you will have no problem reaching those hard to reach targets. The specially designed “Golf Ball” textured magazine offers players maximum grip when hastily changing magazines. A fixed front sight and flip-up rear sight assist players in quickly and accurately zeroing in their opponents, without the need for an additional scope. Utilize the rotary style hop-up to account for various target range and BB weight. The innovative minds at G&P have pulled all stops to provide users with a new approach to the classic M4 style of rifle, which is sure to resonate with enthusiasts of all play styles.


  • Color: Tan
  • 420 FPS (0.20g BB)
  • Magazine: 130rd
  • Weight: 6.5lbs.
  • Inner Barrel: 363mm
  • 11.1v Stick Type Battery Recommended (NOT INCLUDED)
  • Transformer Quick Detach Front Assembly
  • Full CNC Metal Upper / Lower Receiver
  • Full CNC Metal MOTS 12” MRE Keymod Handguard
  • 20mm Picatinny Top Rail
  • “Golf Ball” Textured Polymer Magazine
  • RIS Segments on Handguard
  • Removable Handguard Covers
  • Full Metal Upgraded i5 Gearbox
  • M120 Motor
  • Integrated MOSFET Unit w/ Electronic Trigger & Selector
  • QD Quick-Change Spring Guide
  • Rear Wired - Standard Deans Connector
  • Front and Rear QD Sling Mount Points
  • Removable Muzzle Brake
  • Fixed Front Sight and Flip-up Rear Sights
  • Fully Adjustable Polymer Crane Stock
  • Polymer Fire Selector Switch & Charging Handle
  • Adjustable Rotary Style Hop-up
  • Safe / Semi / Full Auto



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




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