Shadow Strike Pack is a Bundle. It was released on September 17th, 2020 and was last available 17 days ago. It can be purchased from the Item Shop for 2,800 V-Bucks when listed.
How-to Get the Shadow Strike Pack Bundle
Shadow Strike Pack can be obtained with V-Bucks when it is in the Item Shop. Cosmetics rotate in and out of the shop each day, so we have no way of knowing when it will return.
Shadow Strike Pack's Attachments
Attachments are items that come with a cosmetic when it is obtained.