Malf chance for magazines isn't being displayed correctly because the values Realism uses it outside the range that BSG coded for, fixed for a future version, that magazine is pretty doodoo. Short barrelled rifles can have trouble cycling reliably, so any of the AKS74UBs needs a booster to be more reliable. These mechanics are mentioned in the description of short barrels/short barrelled weapons and booster muzzle devices. I'll up the PBS suppressor's malf reduction stat to help with that and lower the AKS74u's base malf chance a small bit. Weapons need to be above 98% to have reduce malfunction chance but that can be changed in in-game config.
Got it, that makes sense! Thank you!