G&P Complete "Special Ops" M4 Metal Receiver & Gearbox Airsoft AEG ProKit i5 (G&P USA) Rear Wire / Black

"This comes with a high-speed motor allowing for a high rate of fire out of the box.
I recommend this as a replacement lower for anyone that has trouble with working on their airsoft replicas.

"If you can't find the exact M4 model you want? Build it. This is a great base to start. I used this for my Block 2 build. Same great G&P product at a half decent price. Everything you need, nothing you don't.

"i got this when it was a daily doorbuster deal!! it was 110$!!! i could not be happier with the way this turned out. G&P killed it with the internal as always. solid construction i added a matrix 509 conversion kit and its pushing BBs so fast it sounds like im shooting stones! no modification will be needed in this lower... (i guess if you want to take this beautifully crafted macine apart you can but its not recommended). all ready to rock gearbox hitting solid and running on deans.

pros.
good packaging
built VERY WELL
G&P cant go wrong
laser engravings (cool EVIKE logo and RANGER skull badge)
upgraded internals ready to rock gearbox 8mm motor the whole 9 yards.
deans plugs
rear wired
G&P
G&P

cons.
NONE

conclusion_
get this lower receiver if your looking to build a SOLID QUALITY rifle you will baby. take good care of your airsoft guns and they will take care of you. you cant go wrong with G&P there a solid quality company and here is a perfect starting point.

"Well I purchased this gearbox well over a year ago as is. I have completely built a gun around it with a price tag of about $600, and this gearbox and body are still running strong. The wiring myth is true it does get hot, but nothing will happen to the gearbox from my experience. I have a Lonex Hopup, Angel Custom 6.01 TBB, Angel Custom H-Nub, and G&P bucking installed and my gun shoots 415-425 FPS with .20 at about 17 rps, with a 7.4v 20C 1000mAh LiPo.

Pros
Sturdy body
Perfect fit threads for any rails
Rails on top are perfect
Sick trades
ITS G&P
405-410 FPS out of box
Deans
Long Wire
Solid feel

Cons
The heating up wiring(not an issue)
Big ass Evike logo on the right side (personal, just don't like it)
The part where the buffer tube goes onto was a bit too long and I had to cut some off to get my buffer tube on.

"Decent gearbox and upper/lower receiver. Out of the box was shooting 430 FPS with .20's. Way too hot for anywhere I play. I swapped out the spring with a m110 and FPS with .20's dropped to the 375 FPS, still too hot for indoor, but in line for outdoor. Only issue was that I had to resolver the positive motor lead because it fell off.

Shimming and wiring are very well done. Sounds great and shoots great.

"I got this the other day and with a madbull 6.03 455 mm tight bore barrel I am getting 455.8 fps with .2 gram bbs and 412 with .25s. They either have an m130 spring in it or I'm getting near perfect air compression. Either way it shoots too hot for every field near me. The trigger is very snappy with a 9.6v and it's getting 17bbs/sec.
Pros
It's G&P
perfect fps for a DMR
Snappy with a 9.6
G&P m120 high speed motor
Near perfect air compression
Cons
Shoots too hot for an automatic gun.
PS. I wish Evike would test products to see what fps they are really getting. This has happened before where they say 380-400fps and I get above 420fps.

"Seriously I'm not even sure if this is a real G&P... no G&P markings ANYWHERE (not the mechbox, externals, nothing...). Even the exterior threads for the RIS should different from other brands and well... it's not the case. I opened it up with my tech and even he thinks there is something weird about it. Personnaly I think it's an evike knock-off from China but that just my assumption. Oh forgot to say my gearbox cracked in my first season....

"I got this because it had a complete gearbox with and upper and lower for my new build. I shouldve just bought everything separate in the end though..

Pros:
-Solid upper and lower
-nice gearbox shell

Cons:
-Motor died 2 shots in (literally 2 shots in with a 9.6 battery)
-selector plate was broken before i even did anything.
-bearings stuck too far out of the shell and had to get new ones just so i could fit a new selector plate on it (i think this is what broke the plate in the first place...)
-the wiring had the screw connectors and had to get standard motor connectors just to fit the new motor i had to get.

over all i'm dissatisfied with g&p on this specific product. ended up getting a new motor, a new selector plate, and new bearings. I personally would not recommend buying this.