The Gen2 Conversion kits came in two versions. The current version has the removable bolt head and has tactile indicators on both the bolt head and muzzle end of the barrel. IMHO the new version is the one you want; bolt disassemble is much easier.
http://www.deserttacticalarms.com/media/SRSNewBoltInstructions2.pdf
http://www.deserttacticalarms.com/media/SRSNewBoltInstructions2.pdf