In this collaboration with BLKFOX, Passive Shoot goes on a quest to build a high-end training weapon, specifically a Systema PTW (Professional Training Weapon), often referred to as a "Trepon" in Japan. After a long period of flirting with gas blowback rifles and MP5s, he felt it was finally time to dust off a lone lower receiver and give it a purpose in life. The build is heavily inspired by a specific setup used by Corey from Superior Defense, proving that even in the world of tactical gear, "imitation is the sincerest form of flattery" (and a great way to ensure your rifle looks cool on social media).

The assembly process is a mix of high-quality components and some "creative" DIY solutions. He shows off a Daniel Defense RIS III rail and a custom-engraved lower receiver that features his own birthday in the serial number—because nothing says tactical efficiency like being reminded of your age every time you check your safety. While he admits to being a bit of a klutz with internal electronics, he left the brain surgery of the gearbox to the professionals, focusing instead on the external "fashion show" of lights, switches, and a suppressor that he hopes won't fall off during a game.

To wrap things up, there is a satisfying reveal of the finished rifle, which looks quite sharp in its two-tone finish. Passive Shoot geekily obsesses over cable management, using everything from expensive mounts to humble masking tape from a 100-yen shop to keep things tidy. He concludes that while other rifles are great, there is just something about the solid feel and "don't-break-me" sturdiness of a well-built PTW that keeps him coming back, even if it means his wallet is now significantly lighter than the gun itself.