[Landpimp]

yup, 2 versions of the dedicated forend, one the 628 has a presure switch, can find for $200, the F is $300 and it has a different type of switch(more options)

was not talking about the Surefire rail system, I have that on my M4, I have 6P attached to it with a Tango Down vertical grip

Originally Posted by dieseldog

I think there is a 628F also. It all just depends on what you want the light to do and how you wish to activate it. Look at this pic and you see what I believe is a Surefire 628: http://www.surefire.com/maxexp/main....540&sesent=0,0