[Viperfish]

I run a Roni kit all the time at TTAC with my TM G18.

Afew problems you will find right off the bat with most kits:

The pistol sits upwards in the kit, meaning you have you adjust your sights way down to compensate.

the front of your slide will sometimes smash up against the inside of the kit, if your using a metal slide this can be a problem. i just use the stock plastic slide and don't care about the damage.

There will be alight amount of wobble but it is nothing that bad.

It is recommended to upgrade your return and hammer spring to compensate for the added mass of the charging handle that's on the slide. otherwise you will find yourself getting stoppages.

if you want to be able to switch it from semi to auto on the fly (if using a g18) you will need to add a small dab of hot glue on the top portion of the selector so it never travels past the inside of the kit.

all of this being said, i love it. makes it lots of fun and the muzzle break on the end make it sound mean.

Its a great kit and always gets alot of looks.