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G&P Complete M4 Metal Receiver & Gearbox Airsoft AEG ProKit (G&P USA) Rear Wire / Black

ID: 41444 (PROK-MB005B-B)
4.3 stars, based on 4 reviews
G&P Complete M4 Metal Receiver & Gearbox Airsoft AEG ProKit (G&P USA) Rear Wire / Black
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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 deans adapter 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: Rear. Low Resistance High Gauge Anti-Heat Wiring Harness.
Plug Type: Standard Deans
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 (Rear Wiring)
  • Integrated high performance Standard Deans type T connectors.
  • 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

    Established in 1995, 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

    4 Customer Reviews

    (Write a review)

    by William N. on 06/23/2015
    "From my previous experience with g&p guns, I expected nothing less than the best with this. I got this yesterday and put it together with the g&p golfball furniture kit, a g&p hop-up, and an angel custom 6.01 tightrope barrel. Let me say that I love it!!! Or at least until the teeth on the piston got stripped. I had no problems other than that, and I will be fixing it with a high-speed aluminum piston. The teeth tore up while my younger brother was spraying the gun on full auto. Other than that, he gearbox was amazing and with the gun built I had a decent fps (not sure of exact but I estimate about 360) and an amazing rof.

    Pro: fun to work with
    Rate of fire

    Plastic piston In such a high rate of fire gun
    by Derek C. on 07/17/2014
    "This peice was made of some really materials. I was really looking forward to using this without modifications. However, like all good things, you need to put some time in to it. When I open the box, the first thing I notice was that it was front wired AND in Tamiyas!!! I specifically bought this receiver for the fact that it was rear wired an in dean's. I almost felt deceived like, what else is different from the description?! Other than that, this gear box and receiver is one of the best quality I've seen In airsoft. Also the hole where you put the screw for the buffer tube isn't lined up correctly so I needed to file it so it would fit.
    Pros: looks really nice
    Nice and stiff safety
    Good materials
    Great motor

    Cos: still needs work out of the box
    Was front wired when description said it was rear
    In Tamiyas when description said it was in dean's
    The hole that allows the buffertube screw to attach to gearbox was mis-aligned
    by Keith S. on 12/24/2013
    "First off let, me say that the feel and finish of the body is amazing. The paint job is nice and looks anodized and the marking standout well enough but I dont think that they're eched in. the stock mount and the threads for the delta ring are a pretty tight fit so be carefull. The gear box is very nice and is lube decently enough but I wanted to down grade to play cqb so let me go over the important stuff.

    Bearings instead of bushings
    m120 linear spring
    standard ratio gears
    16 gauge wiring
    G&P m120 high speed...motor wires for motor needs screws inorder to mount
    polycarb piston
    plastic spring guide
    dust isn't not supposed to close
    also trigger is a bit tricky just a heads up

    great body
    solid gear box
    good motor
    diy starter kit for a good price $128
    body is solid and doesnt wabble about
    if none of your batteries are wired to deans you might have a problem
    some mags might not work, pmags wobble a lot
    trigger guard also wobbles a lot
    bolt catch is very secure makes a lot of noice

    Overall a great body and kit if you want to built a new gun but don't have the time or know how to buld it from scratch. Great for outdoors if you dont want to change the spring and the trigger response on a 9.6 is actually not half bad either. BUY THIS NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!-

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