We apologise that you have not yet received a letter from us. Please click the following blue link to place an order for a free replacement o-ring:
You can continue to use your Gen 4 ShotKam in dry weather. Once you have received the o-ring, please replace it immediately as the new o-ring will ensure a waterproof seal when the back cap is tightened onto the ShotKam.
Click the blue link above to order your o-ring to desired shipping address.