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KJW KC02 10/22 Airsoft Gas Carbine Rifle

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$249.99  per EACH
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Item Code:
Guns Styles / Models:
Airsoft Sniper Rifles
Airsoft Manufacturers:
KJW (Kuan Ju Works)
Stock: Yes & Ships w/in 24Hrs*
Model: Airsoft Carbine Rifle
Video Review  - Click on Picture of Airsoft Gun to Watch Review Written Review  - Click on Picture of Airsoft Gun to Read Review Accuracy Proven - Click on Picture of Airsoft Gun for Target

KJW KC02 10/22 Airsoft Gas Carbine Rifle
- Velocity: 420 fps (0.2 g BB) / Range 180-200 feet
- Barrel Length: 16 inches / 41 cm
- Magazine Capacity: 22 Rounds
- Semi Auto Only
- Integrated Quad Rails
- Detachable Iron Sights
- Retractable M4 Style Stock
- Accuracy Proven
- Airsoft Gun Review and Video Review Available - Click More Info
- Made in Taiwan

KJW KC02 10/22 Airsoft Gas Carbine Rifle Manual

The KJW KC02 is a Tactical Lightweight Rifle that is perfect for any medium to long range loadout. The internal gas system is based around a high efficiency magazine that can consistently shoot all 22 rounds with ease. The entire gun is made from Nylon Fiber and Aluminum making it lightweight and very durable. The KC02 also includes 4x 20mm Rails for tactical accessories, as well as a railed flat top for easy scope mounting.

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Table of Contents:
Basic Gun Information
First impressions/Packaging
Gun Specifications

KJW has recently started building Gas Blowback Rifles (GBBRs), and the newest model is the KC02, a replica of the ubiquitous 10/22 rifle. It uses a gas-in-mag firing system, and is fitted in a tactical stock, which is fitted with M4 type furniture. This rifle could easily serve in a scout rifle role, and I will discuss all of the various aspects of it in this review!

I obtained this rifle through Airsplat, who was the first US based retailer to have the gun in stock. After some SNAFUs on UPS part, I received the gun safe and sound, and could get to work tearing it apart to see how it ticked.

Basic Gun Information:
As mentioned before, the KC02 is a gas blowback rifle, which houses the propellent in the compact magazine, along with BBs. It is based on the Tanio Koba 10/22 blowback design, which seems to be a pretty effective and efficient system. It has some very interesting features, such as the externally, and incredibly easily adjustable hop-up, long top rail, integrated rails in the tactical stock.

First impressions/Packaging:
The KC02 comes packaged in a black cardboard box, with an image of the gun held within on the lid. Inside the box, a styrofoam lower insert keeps everything safe and sound during shipping. My first impression upon looking at the gun was how much it looked like my old Ruger 10/22, with the stock being the notable exception. I've never really liked 10/22s in tactical stocks, but I will resolve this issue on my gun shortly.

Along with the gun itself, KJW has included a single 22 round magazine, loading tool, a small box of BBs, rail covers, and a manual to cover the basics of operating the gun. It's pretty much ready to roll out of the box, just add your choice of gas and BBs, and you're ready to rock and roll.

Gun Specifications:
Weight: 5.6 lbs
Length: 30.75"-34"
Width: 2.75" with rail covers installed
Height: 6.75"
Sight Radius: 12"

KJW built the KC02 out of a variety of materials, but mainly polymer for the stock system and rails, and metal for the receiver, barrel, and trigger mechanism. The layout and balance of the gun is great, and the pistol grip on the tactical stock makes it very easy to handle. Colored in a matte black finish, you will have a minimum amount of reflected light coming from the gun.

External overview, right side

Overview, left side

Shouldering the gun is accomplished using an M4 style 5 position LE stock, which is compatible with aftermarket AEG stocks. The stock tube is metal, and fits to the receiver very sturdily, with no wobble whatsoever, however, the stock itself does have some freeplay on the stock tube. At the bottom of the stock, you will find a metal sling mount.


5 position stock tube

Sling mount

The receiver is comprised of two pieces, the metal upper piece which houses the firing mechanism, and the lower portion, which is part of the one piece tactical stock. The lower portion is made of plastic, and serves as a place to mount the stock and grip. The upper, which is metal, is largely hidden by the lower plastic portion, only really showing the cocking handle on the right side.


The controls are housed in a metal trigger assembly, which is attached to the upper receiver using two pins. The whole assembly is hidden inside the plastic frame, with only the trigger, safety switch, and magazine release being easily visible on the bottom of the receiver. The trigger pull is light and crisp, and quite short, only 3-4mm. The safety is a crossbolt type pushbutton unit, with colored o-rings to indicate if it is in the safe or fire position. Note, the gun can only be put on safe after the gun is cocked.


The charging handle is located on the right side of the receiver, and it reciprocates with every shot due to the GBB system. Upon running out of BBs, the bolt will lock back, allowing you to replace the magazine, then pull the handle back slightly to release the lock, and recock the gun.

Cocking handle

Bolt locked back

The pistol grip is a standard M4 style grip, with texturing on the sides for enhanced grip. It is a real steel type grip, so you can replace it with an aftermarket grip if you choose.

Pistol grip

Moving forward on the frame, you will find the handguard, which is adorned in rails at the 3, 6, and 9 o'clock positions. The rails are made of plastic, but they seem to be quite sturdy. KJW included rail covers to make holding the gun more comfortable. At the front of the handguard, you will find a metal sling mount, which when used with the mount on the stock, allows you to use a two point sling.


Handguard with covers in place

The outer barrel is metal, and is a bull barrel design, keeping about a 1" diameter throughout. It is attached to the receiver in the same way as the real gun, using a metal wedge piece that holds it in place using two screws. On my gun, the screws were quite short, only grabbing onto the first 1-2mm of threading on the receiver, which promptly cause them to strip, causing extreme amounts of barrel wobble. I replaced them with some screws that were about 4mm longer, and now it locks on very securely. You can unscrew the muzzle cover to expose a 14mm- threaded muzzle.

Outer barrel

Threaded muzzle

Aiming this gun is accomplished using the included M4 style removable iron sights, which are attached to the two piece upper rail. The front portion can be removed to give you a shorter overall upper rail length. The rail is made of high impact plastic, however, I don't really foresee any durability issues with it.

Rear sight

Front sight

Attached to the full length upper rail

One of the best features of this gun is the hop-up adjuster, which is located on the top rail. It can actually be adjusted with your finger while firing the gun. It locks into your chosen position quite well, and does not loosen itself while firing.

Hop-up adjuster

KJW didn't include any trademarks on the KC02, aside from a small "Made in Taiwan" mark on the left side of the frame.

The included magazine is full metal, and holds 22 rounds, with the gas capacity to fire about 35 rounds. Its low capacity lends it better to sniper/scout rifle duty, which it can certainly achieve with some practice, and tweaking of a few parts.


Fill valve

Feeding bits

There are are small nubs and dents on the left side of the magazine, which allows you to line up two magazines together, with one being upside down. They don't lock together, so you will need to tape them together for it to be secure. As far as magazine pouches go, these fit best in either pistol magazine, or even in 40mm grenade pouches. They are too small for most assault rifle magazine pouches.

Chrono results using Airsplat .20g BBs, using Propane, shot through a Madbull V1 chrono, after a 200 round break in period:

High FPS: 451.9 FPS
Low FPS: 422.5 FPS
Average FPS: 437.7 FPS

Gas consistency wasn't TOO bad, however, I did see the occasional spike above 440 FPS with 20 seconds between each shot. It didn't seem to exhibit too much cool down during rapid fire, but being a GBBR, pumping through all 22 rounds in a few seconds will drop your FPS.

Accuracy and range were actually pretty good stock. Using .28g ammo, with the hop-up dialed in (a very easy task considering the placement on the top rail), I was easily able to hit my standard torso sized target out to 160'. I was exhibiting a slight amount of right hook in my shots, so I ensured that the barrel was properly aligned, and corrected the drift. After I did that, it shot great, right through my crosshair, which I zeroed at 140'.

Gas consumption is actually great for a GBBR. Normally, I find myself struggling to even get a magazine's load of BBs out of a single gas charge, but with the KC02, I was easily able to get two magazine loads of BBs out of a single gas load, if I took my time between shots. It was really surprising, especially since it has a tiny gas reservoir.

Internally, the KC02 is, cosmetically, quite similar to the real 10/22, however, it is obviously not the same. The upper receiver and outer barrel can be removed from the tactical stock in one piece, allowing you to mount it in a real steel stock, after modifying it a bit. It can be removed by unscrewing the lower screw, as well as the one at the rear of the upper receiver. You can then pull the whole firing mechanism out of the stock.

Firing mechanism

At this point, you can unscrew the two screws on the barrel mounting wedge, which will loosen up the outer barrel. To remove it fully, you will need to unscrew the top rail, which also holds the barrel to the receiver. With the outer barrel removed, the hop-up, inner barrel, spacer, and barrel extension will all slide out. I don't know why they didn't go with a full length inner barrel, but it is likely to control FPS and keep it from going too high out of the box.

Barrel attachment wedge, note, this is after I replaced the screws

Barrel system


The receiver can now be split into two parts, by removing the two lower pins, and freeing  up the trigger unit. The trigger unit houses the hammer, safety switch, magazine release. I would recommend occasionally lubricating the hammer to ensure smooth firing.

Receiver with barrel removed

Trigger assembly removed from the receiver


Magazine locking system

Inside the upper receiver, you will notice the bolt, which houses the blowback system. The bolt is made of metal, but the blowback system is largely made of high strength plastic. You can lubricate the top of the bolt to ensure that it slides smoothly inside the receiver.

Shot inside the receiver

Bolt removed from the receiver

Top of the bolt

Bottom of the bolt

There are a few upgrades for this gun out currently, with most of them being made by RA Tech. You can get a full length tightbore barrel, however, it will raise your FPS substantially.

For me, I just decided to install the gun into a real steel wood stock, which I refinished before installation. I will be writing a full tutorial on the stock modification process in a few weeks.

My gun now

With red dot sight

Only currently manufacturered affordable 10/22 replica
Decent performance out of the box
Tactical stock allows it to fit most users, plus add accessories
Includes top and body rails
Externally adjustable hop-up is GREAT
Crisp blowback action

Costs more than some real 10/22s
Slight stock wobble
Low magazine capacity
Barrel attachment screws can strip

I've been a big fan of 10/22s for years, as it was one of the first guns I ever shot, and I couldn't pass up the opportunity to own one that is skirmish ready for an affordable price. Before, if you wanted an airsoft 10/22, you pretty much needed to spend almost a grand on a TK, if you could find one. After I swapped mine over to a wood stock, it feels fantastic, and is absolutely perfect for a scout rifle. I will be tweaking the internals slightly to better fit that goal, and I will document my progress as I go!

KJW KC02 10/22 GBBR review by Booligan

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