(Draw is the time it takes you to pull out your gun) The heavier the gun, the slower you can draw the gun. Adding attachments will add more weight to your gun, but with this feature, you can still have a decent draw time without sacrificing tactility.(Custom definition: How tactical and practical something is.) In a game called Ground Branch you can slide your attachments on the rails. This could help balance the gun better so you have better recoil control and draw time. Having your gun front heavy will reduce vertical recoil, but slower draw time. Having a nice balance point will help you have decent recoil control, and decent draw time.
Suppressors will have add a lot of weight to the front of the gun. So you want to add some attachments close to the receiver if you want better draw time.
Grips, flashlights, and lasers will help you if you put them in the right spot. Changing the location of them within the gun UI in the inventory will tell you if it is front heavy, or just right.