Yes but the location you speak of is up-stream from the stinger and most will naturally exit from pressure. However, because the cone (end of chamber) is downstream
and also pointing below center bleed, you risk having water collect there. When this (mod) chamber is mounted on a Blaster, the cone is tilted slightly up (or level with the center bleed). Same goes with the famous TNT chamber that these FP versions were modeled after (B1, XiR, Raider, SXI).
Do you see a pattern here: