Ugh adds 4 type of mag for Clarion Rifle, not compatible with vanilla reload animations cause animations for mag stored in mag model itself, have to add those to make it work. Use this custom animation - https://modworkshop.net/mod/43091
Those mags based on vanilla Clarion magazine and only can applied on Clarion Rifle, so if you have Gage Assault Pack you should be good.
If you don't like current stats on these mags you can change it by yourself. Use notepad++ on main.xml inside of Famas Mag Mod Pack folder you can change stats. Look for <stats.../>.
"wpn_fps_ass_famas_m_quad" - Quadstack Magazine,
"wpn_fps_ass_famas_m_pmag" - Tactical Magazine,
"wpn_fps_ass_famas_m_std" - Milspec Magazine,
"wpn_fps_ass_famas_m_north" - Saint Victor Magazine.