This Sightmark battery pack will fit any Picatinny rail, and it will power your optics - giving you more time at the range, or in the bush, and less time sitting next to a wall outlet. This battery pack will fit any device with a Universal USB-C, and it weighs a mere 5.4 ounces, to avoid overloading your firearm. Featuring a battery-charging indicator, and made of durable, flame-retardant ABS, this battery pack is an excellent addition to any shooting system. Features : Rechargeable Lithium Ion Battery Toolless Quick Detach Mount 6,000 Mah Capacity Powers Devices With All USB Formats