ER7 RFW (ammo) ER7 RFW rounds are the type of ammunition used in both variants of the Namalsk-exclusive gun known by similar name as the ER7 RFW. The ammunition is always found with the ER7 RFW; no where else. Comments (0) Screenshots (0) No comments yet! No screenshots yet! Contribute Add your comment Submit a screenshot Log in or sign up to add your own comments! Log in or sign up to add your own comments!