A tiny addon that contains 6 stocks and 3 railed vertical grips.
Some of the stocks have an FDE variant which can be accessed under the [Material] option.

Credits:
JMac Customs SS-8RP & TS-8RP, Strike Industries Modular Fixed Stock: cannuccia
Magpul UBR: ParallaxGameStudios
MCX Stocks - ParallaxGameStudios [donated by FrenchyAU]
FAB Defense T FS Vertical Grip - PsyTi [donated by RJC9000]
Railscales LDAG Vertical Grip - ParallaxGameStudios [donated by RJC9000]