Systema PTW service

Disassembly and small service on a Systema PTW. This has seen a few years of use and is just having a bit of a clean up. Background music: NIVIRO - The Ghost [NCS Release] Music provided by NoCopyrightSounds Free Download/Stream: Watch: Jnathyn - Dioma [NCS Release] Music provided by NoCopyrightSounds Free Download/Stream: Watch: