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maddog71 Thursday, January 26th, 2006
Period of
Product Use:
Less than a month17 of 21 people found this review helpful.

More than 5 years
Products Used:
PEC Master-remember that marker!- Very good
Tippman 98 Custom-Better
Tippman A 5-with Flatline-Excellent
Marker Setup: MKX8 with rail system pre mounted and red dot sight. Otherwise this is semi stock model and has not been tested in the field at this time.
I would like JCS to come out with a barrel upgrade which would "hop up" the paint for longer range. An auto trigger assembly is probably in the works. A JCS version of the red dot sight on the real "XM-8" rifle. Other configurations for the marker such as SAW or commando CQB version.
Strengths: MilSim Marker
Easy Field Strip
Unusual and Different
Both CO2 and Air
Weaknesses: Nothing as of yet
Review: The MXK8 design is based on the new XM-8 series Assault Rifle from Heckler & Koch designed for the US Military to replace the aging M-16 series rifles. This marker is clearly aimed at the mil-sim rec ball player. It offers a new design with some of the unique features in the real XM-8. The marker is an all polymer shell. This is not the cheap plastic used in common hard plastic which can shatter but the much more durable and flexible rubber plastic found on heavy pvc frames for the real rifle. It will allow bending and take heavy abuse, it is also light weight and will work well in extreme tempatures. The marker is about four pounds and has a very good balance. The major internals or what JCS calls the "Engine" are steel and appear to have a venturi bolt layout but also have a few unique design features. The parts are easily field stripped with the removal of the holding pins. It only takes a couple of minutes to strip down. No screws or small parts like the Tippman A-5. There are three main sections to the marker. These are the barrel and foregrip assembly, the main body and the retractable stock and grip. The barrel is held in the main body by a lose floating fit and not screwed into the bolt assembly. It fits into a metal collar over the bolt assembly. If you need to clean the barrel you can take off the foregrip assembly and pull out the barrel and squeegee then pop back in and replace the pin, its that easy. The trigger assembly has metal parts in a plastic frame. The modular design is great and allows for add ons and changes such as the real XM-8.

The marker is also ambidextrous for both lefty's and righty's. The safety is on both sides of the receiver and is easy to move from safe to semi or auto with your thumb. The automatic setting is on the marker but this is only a semi packageI have to review here. JCS is probably planning to release a full auto feature at some point. Also the ball feed on the marker can be switched to the other side of the marker since there is an insert on the frame for the ball feed.

I have heard some issues about the feeder being lose and could break off. I do not see that happening so quickly due to the plastic its made out of which like the rest of the marker and is of a high impact design. Besides a replacement part maybe inexpensive if for some reason it does. I heard JCS may have had some quality control with the early models but I have not found anything wrong on mine.

The rail system is already mounted on mine and looks to be 20mm standard. The rail on the top of the receiver is good for a red dot sight and is not obstructed by the ball hopper which is a slim type design made to deflect incoming paint and mounted off to the side of the marker. I am not sure if this will throw the balance off but since the hopper looks to hold less then the average 100 balls I am unsure of a real balance issue. The hopper is mounted via a clamp with a hex wrench.The adjustable stock is a nice feature. The charging handle is mounted on the top of the marker and can be used on either side. There are also flip up sights that come up from the carry handle area. The magazine is fake but adds realism to the MXK8 and allows the gas line to enter the assembly. Also there is a possibility for expansion for a bottom feeder in this area. Velocity is adjusted via a hex wrench on the rear of the marker inside the shell at the rear of the main assembly under the stock and grip housing.

Conclusion: Overall since I have not tested this in the field I really cannot comment on how it works in play. It is a very good example of the real XM-8 and appears to be designed in a similar fashion. With this in mind I expect it to play as well as it looks and offer me a real Mil-Sim design with awesome functionality and durability at an inexpensive price. It is also unusual marker design which will allow for possible upgrades for JCS. I am very impressed up to this point and love the job JCS has done with this marker.
10 out of 10Last edited on Thursday, January 26th, 2006 at 8:34 pm PST

Review Comments
Humboldt Hitman Wednesday, May 31st, 2006 | 5:32 pm PST
100 balls is not average my freind.

mjr_paranoid Friday, May 18th, 2007 | 4:23 am PST
please do not review something you haven't even used.

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