Modular Clip Storage Stock (Remix) - Springy clip stock mount is quite secure. Can store 1-3 magazines in stock w/ side rail mounts. Short & long versions (long shown). Whole reason I
Thrifted Nerf Modulus Mag Stock V1 - Etsy
NERF N-strike Modulus Storage Stock Attachment Hasbro 2016 for sale online | eBay