Madbull JP Rifle Conversion Kit (LONG)
[J502502814 / MB JP FULL]
Displaying 1 to 6 (of 6 reviews) Result Pages:  1 
by C. SINGLETARY verified buyer Date Added: Friday 02 May, 2008
verified buyer
For: Madbull JP Rifle Conversion Kit (LONG)
I received this kit yesterday and proceeded to install on my Echo1 M-16 DMR, I did not have an easy time installing the kit as some have, as the gentleman below said there was some difficulty with the gas tube, I as well had to saw it off a few centimeters. The "spring pin" was also quite a pain to get into the gas block, I eventually had to go in with a sharp screwdriver and shave some metal off the inner hole so it would fit.

But once you finally get the kit installed it does look quite impressive! I'm very happy with it, it does seem very light, but it also feels good. Just requires a little bit of skill to install.
by C. HARGLERODE verified buyer Date Added: Friday 21 March, 2008
verified buyer
For: Madbull JP Rifle Conversion Kit (LONG)
Awesome kit! I installed it on my G&G GR-16A3 and it was painless. Took me about 5 minutes to install.

The only problem I had was the delta ring doesn't line up with the upper receiver when screwed on completely. The way to do it is to screw on the delta ring almost all the way. Then, screw on the inner ring until its almost tight. Finally, continue screwing the delta ring using the inner ring to tighten into place. Takes a few tries to line it up with rail on the upper receiver. Be sure to line it up perfectly especially if you plan on attaching a rail to the top,

With the longest outer barrel installed, the length is now 6" longer than the stock GR-16A3, but weighs in less. Very impressed. Looks sexy. Feels great.
by A. REICH Date Added: Saturday 08 March, 2008
For: Madbull JP Rifle Conversion Kit (LONG)
the barrels included with this gun are outer barrels, so they are not tightbore. you have to buy separate a separate innerbarrel for this kit. please do not be stupid in the future.
by E. HEATH Date Added: Saturday 23 February, 2008
For: Madbull JP Rifle Conversion Kit (LONG)
are these barrels tightbore? i assume so cuz they made by madbull
by G. PI Date Added: Wednesday 20 February, 2008
For: Madbull JP Rifle Conversion Kit (LONG)
This kits work great on my ECHO M16 DMR. You need some skill to install this front end kits. It is not that hard though.
Looks extremely great on my DMR. Price is very fair with 4 barrels available.
by J. STOKES Date Added: Thursday 10 January, 2008
For: Madbull JP Rifle Conversion Kit (LONG)
I just received this kit yesterday for my CA M15A4. I must say this is a great kit for anyone who is looking to build a DMR of sorts. It takes some time to put together but it's worth it. There are a few installation difficulties I should mention though.

-Gas tube must be bent into shape before being placed in the gas block and delta ring.
-For me the gas tube seemed too long, so I had to saw it down about a centimeter to get it to fit.
-Lining up the delta ring and tightening it can be a pain, it took me a few times.
-When the barrel extensions are installed, you cannot slide your inner barrel through it. You need to take off the extension, place the inner barrel through the barrel in the hand guard, then screw the extension on. The inner diameter of the extension is too small and was scraping up the outside of my inner barrel when I screwed it back on. The inner barrel still works fine though.

Once you get by those few problems, the kit works great. It looks nice and handles well. Believe it or not this kit is fairly light weight, I thought it would be heavier. My gun weighs 9 pounds with the second to shortest barrel, Aimpoint, battery, and mag all on the gun. Overall this is a great buy if you get through the installation.
Displaying 1 to 6 (of 6 reviews) Result Pages:  1 
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