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G&P Complete M4 Metal Receiver & Gearbox Airsoft AEG ProKit (G&P USA) (Version: Front Wire / Desert)

ID: 41443 (PROK-MB005F-D)
4.4 stars, based on 11 reviews
G&P Complete M4 Metal Receiver & Gearbox Airsoft AEG ProKit (G&P USA) (Version: Front Wire / Desert)
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Looking to build your dream AR-15 M4 M16 AEG without compromises? The G&P ProKit is dedicated to provide you the top selections of everything you need; and nothing you don't. Every G&P ProKit comes complete with a per-assembled AR-15 M4 receiver, a fully tuned complete gearbox, G&P motor, motor grip, and integrated low resistance wiring harness to start you off without compromises. All that's left between you and your custom dream build, will be a front-end of your choice and stock! The ProKit is a great start for the intermediate and advanced players who wants to take advantage of the vast selections of m4 front end furniture and stocks available at The G&P gearbox, motor and receiver is globally recognized to be among the highest rated. Our chronograph, ROF meter, voltage and current meter have also verified that the G&P gearbox runs with lower resistance, a higher rate of fire (given same spring rating) and much smoother as the result of years of research and development G&P put into their performance parts.

Compatibility: The G&P ProKit is compatible all major brand compatible M4 / M16 series front ends and stocks.
Power: M120 (360~450 FPS depending on setup)
Laser Engraving: G&P USA
Wiring: Front. Low Resistance High Gauge Anti-Heat Wiring Harness.
Plug Type: Tamiya
Gearbox: 8mm Bearing Gearbox.
Motor: G&P High Performance high speed M120 motor.

Manufacturer: G&P

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.
Package Includes:
  • G&P USA Full Metal Laser Engraved Receiver
  • G&P Award Winning 8mm Bearing Complete Gearbox (Front Wiring)
  • M4 Cocking Handle
  • New Dust Cover Set
  • Reinforced G&P Metal Bolt Cover / Receiver Pin Set / Forward Assist Knob / Selector / Magazine Catch
  • Reinforced G&P Metal M4 Trigger Guard / Bolt Stop
  • G&P M120 Motor and Motor Grip
  • *If you are looking to build your dream AEG with the front-end, RIS, and stock of your choice: This kit comes complete with everything you need! The gearbox and metal receiver assembly are all pr-assembled!
  • About G&P

    G&P is among the oldest Military-simulation and training Airsoft manufacturers in the world. Started as a top combat light provider for law enforcement and military agencies around the world, G&P branched into Airsoft manufacturing with the same belief to never sacrifice quality for lower price. Their motto is visible on every G&P product. Every G&P AEG rifle is hand assembled and individually fine-tuned by top technicians in the industry to match G&P's unparalleled quality and reputation. G&P utilizes CNC precision machining and real-steel finish/coating processes on many of their products.

    FPS Range: 360-450

    California residents click here for Proposition 65 warning

    11 Customer Reviews

    (Write a review)

    by Timothy C. on 01/09/2018
    "This is everything I could ask for, G&P keeps getting better. With a standard carbine barrel and A&K metal hop up (not even my desired hop up) this thing is spitting .20s at 430 fps using a 7.4v 1800mah PEQ Lipo battery. Can't wait to see what the .01 stainless barrel and retro arms hop up will do. G&Ps trades are nice and classy, and their tan color is perfect.

    My plan was to just blow this thing out and rebuild it but I honestly am happy as a clam with how this thing performs as will now be a chore to rebuild in the future but something tells me this baby will last a while with proper care.
    by Bryce G. on 06/30/2017
    "Great G&P solid feel to the externals. The kit has a terrible piston, I replaced it fast but already saw that it was starting to strip. Gears are good quality. Good motor. A couple external problems are the dust cover wont close and the mag release sometimes gets stuck, although you can fix it quickly. Paired this kit with a G&P buffer tube, G&P outer barrel, and the G&P MOTS hand guard and everything is solid as a rock. When I replaced the gearbox shell with a new retro arms QCS one, I had to sand the upper ever so slightly to get it to fit.
    by christopher w. on 10/24/2015
    "I bought this gearbox in hopes it would last me a while and so far I'm impressed with it. It shoots 400 fps and 16 rounds a second w/ a 9.6 volt battery and is very smooth the body is made of aluminum so it is very light weight. And just to clear things up this does NOT come with a hop up unit so you will have to buy one separately but other than that this gun has been amazing

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