I'm starting to think about the upper for my new lower and need some input on rail systems.  Advantages/disadvantages of the various systems.  Right now I'm considering the Knights RAS II, the Sir-C and the Firsh.  Pics of the different systems would be helpful.

There is an AR15.com Group Buy for the FIRSH right now:www.ar15.com/forums/topic.html?b=7&f=22&t=145428

You may want to check it out.

With the RAS II and the SIR-C, you do not have to remove the barrel nut and gasblock/sight tower, as you do with the FIRSH.

Is price an issue?  The RAS and SIR go for around $375 and the FIRSH cost $100.

Shame you can not do a search, cause there is a ton of members feedback and opinions about those systems.

I should just send in the $60 so I can use the search function.  Price isn't the issue.  I'm just looking for the best rail system I can buy.  I would prefer the simpler installation.  I guess I'll cross the Firsh off my list.