if more of the accessories are needed, it is typical for units to "cannibalize" the kits of inactive teams. the documentation for the kit does not require a rewrite if improved replacements for any of the current items can be found. as a result, this content list has changed. for instance, on many sopmod m4s today, the crane sloping cheekweld stock has been added. several potential additions include the m26 modular accessory shotgun system and the m320 grenade launcher. also, various eotech holographic sights are used on many sopmod configured m4s.