Abstract: An ammunition indicator system of the present disclosure uses a magazine configured for housing bullet cartridges, the magazine comprising an outward-facing surface and a cavity. The system further has a follower that fits within the cavity and interfaces with the bullet cartridges inside the cavity. The follower further moves in a direction toward an open end of the magazine as bullet cartridges from the cavity are spent. The system further has a channel in the outward-facing surface of the magazine and an ammunition indicator rod configured for slidably coupling to the channel and fixedly coupling to the follower, the ammunition indicator rod indicates an amount of ammunition in the magazine.

Abstract: An ammunition indicator system of the present disclosure uses a magazine configured for housing bullet cartridges, the magazine comprising an outward-facing surface and a cavity. The system further has a follower that fits within the cavity and interfaces with the bullet cartridges inside the cavity. The follower further moves in a direction toward an open end of the magazine as bullet cartridges from the cavity are spent. The system further has a channel in the outward-facing surface of the magazine and an ammunition indicator rod configured for slidably coupling to the channel and fixedly coupling to the follower, the ammunition indicator rod indicates an amount of ammunition in the magazine.

Abstract: An Advanced Uniflow Rankine Engine (“AURE”) that is effective and thermodynamically efficient at higher speeds (e.g., 400-1800 rpm) and has low torque output. This allows the AURE to be compact of size without the need for a massive foundation found in prior art steam engines. The AURE includes an admission valve assembly, a cylinder head/valve gear assembly, a cylinder/piston assembly, a crank shaft assembly, an external sump, and an integral condenser. The admission valve assembly includes a counterbalancing poppet valve and valve stem that creates counterbalanced unsupported areas that allow the poppet valve to operate at higher speeds. The AURE can be fueled by raw, unprocessed fuel, including biomass, to generate efficient energy in a smaller overall package.