?Does the "Standard Stock S12K" improve ergonomics?
Ergonomics increase by 2, making the weapon easier to handle.
?Does the "Standard Stock S12K" replace the standard stock?
Yes, it is a stock for the S12K shotgun; its effects apply after installation: ergonomics +2, vertical recoil +6, horizontal recoil +9.
?What is the purpose of the "Standard Stock S12K" part?
Installs on the S12K shotgun.
?How does the "Standard Stock S12K" affect the weapon?
Standard Stock S12K: ergonomics +2, vertical recoil +6, horizontal recoil +9.