PHLster and Sentinel Concepts are co-developing a new product, the Rail Buddy, designed to keep spare batteries for weapon mounted lights close at hand. The rail buddy will work with several battery types including the 18650s and 18350s that are driving many of today’s modern lights.
The Rail Buddy will attach via a Velcro One-Wrap strap so that it can be mounted in a variety of locations on the handguard or elsewhere. It can also be used to help with cable management for tape switches.
The battery storage compartment is currently in the prototype stage (3D printed prototype shown).