"This is a very realistic and super high quality rifle. However, they weren't kidding when they called this a challenge kit. There are only 21 steps, but almost every single step involved quite a bit of frustration. Some smaller parts needed to be filed down to fit property. The instruction was a photo copy of a photo copy, so the resolution was terrible. There was not much writing in the instruction, only low quality pictures. Double and triple check every step before you put the parts together because the fit is extremely tight, and it will be a pain to undo some parts to correct your mistakes. But once this gun is assembled, it is absolutely amazing. The realism is the best in the business. Everything is metal. The recoil is strong, and very loud. This gun comes with a steel barrel tip as well as a plastic orange one. Do not ever take this out in public without a gun case. Do not fire it in the back yard if you have neighbors around. You are just asking for trouble. I have used both propane and duster gas with great result. The duster gas would be perfect for indoor use as it does not smell, and the velocity is lower. But don't forget to use silicone oil if you are not using green gas. There are some build videos on Youtube that are very helpful, especially one made by a guy name Jedi. "here is what I've experienced the build kit is nice and easy to understand how to put together if you have basic mechanical skill the exterior is built well I was missing the barrel all together but I called evike and they had it shipped to me Pronto so good service evike thanks now back to the gun it has a break in period once assembled so don't get butt hurt if it doesn't run like you want but once I broke it in I went to the nearest field and really put it through its paces. The stock bolt and bolt catch were worn out after play, the mag catch broke and extensive wear on the trigger group parts. Now keep in mind this is a build kit so if it's not perfect replace parts, there are parts that I would get that are made out of steel are the bolt, bolt catch, mag catch, ( trigger group eventually) buffer lock.
Good base for a butt kicking custom build
Teaches you (know your rifle)!
Patience lots of patience
Break in period
Lots of tweaking
major operating parts need to be replaced with steel aftermarket parts
Not skirmishable right after being put together (BREAK IT IN!) "Like the other reviewer I recieved this kit missing a few parts and the whole outer and inner barrel. I called evike and they are currently looking into it. Will update this review once everything is solved. Thanks. Read More Reviews Write a Review
« Back to product description
G&P M4 WOC "Fighting Cat" GBB Airsoft Gas Blowback Rifle Challenge Kit (M4A1)
This is the ultimate in DIY Challenge Kits from G&P. This Evike.com Exclusive kit comes with everything you need besides the magazine to make a fully functional G&P M4 WOC Full Metal GBB. Your opportunity to own a high quality G&P GBB M4 at a fraction of the normal price.
This G&P M4 WOC Kit comes with the newly designed nozzle more efficient system as you will see. The manual still shows the old type nozzle but the kit will come with the new type!
What comes with this kit?
The G&P M4A1 Challenge Kit comes with all of the internal parts necessary including the Blowback System parts, Hopup System Parts, Barrel Assembly Parts, Receiver, Foregrip, Front and Rear Sights, Buffer Tube and Stock System.
Will I need to assemble anything?
The G&P Challenge kit is meant a Do-It-Yourself kit for
players and comes
disassembled. You will need a solid grasp on the inner and outer parts of Western Arms style M4 GBB's to be able to complete this kit.
Evike.com will not be responsible for any mishandling, damage, or other issues caused by the purchaser's inexperience or lack of knowledge on building this kit.
The G&P M4 GBB Challenge Kit is Western Arms compatible and can be used with Western Arms upgrade parts. Keep in mind, like any aftermarket parts, some modification may be required.
Does it come with a Magazine?
No, the G&P M4 GBB Challenge kit
does not include a magazine
. Thus G&P is able to export this item to you at great cost without it being "a complete gun" while saving you assembling cost at the same time for those that knows their M4 GBB.
**To comply with US Federal Regulations, all kits will come with a blaze orange muzzle device permanently affixed to the outer barrel. G&P magazines available here at Evike.com Disclaimer:
The supplied manual includes instructions on installation of the outdated Nozzle design. The updated Nozzle has been illustrated below.
*G&P Challenge kit does not come assembled and does not include a magazine *Magpul CTR Stock, Magpul PMAG, Vertical Grip, Surefire Mock Silencer, RIS, and Sling Adapter not included 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.
Wanna chat about
G&P M4 WOC "Fighting Cat" GBB Airsoft Gas Blowback Rifle Challenge Kit (M4A1)?
Have questions about this item? We monitor these comments daily, but it may be faster to
email us directly or call us at 1-626-286-0360.
Facebook about THIS with your friends! Comment for a chance to win awesome airsoft prizes. Details can be found on The Evike Facebook Fan Page HERE! Remember to leave "Also post on Facebook" checked to qualify your comment!