Airsoft Mechanic GR showcased a custom-built Specna Arms M4 featuring an Artisan URGI rail system and a Surefire replica suppressor. The internal components include a Perun v2 hybrid trigger unit, an HT motor, stock gears and bushings, a UFC piston, an FPS cylinder, stock piston and cylinder head, an Ultimate tappet plate, an FPS nozzle, an M100 spring, a stock spring guide, an SHS hop-up unit, a 6.03 brass barrel, and a Quantum bucking.

Airsoft Mechanic GR showcases their fully customized Specna Arms HK416 AEG, featuring a 22tpa motor, 13:1 gears (SS - 4), FPS softair compression, a Gate Titan, and an Rhop. This impressive build achieves 340 FPS and fires at a rate of 30 BB rounds per second."

In this brief video, Airsoft Mechanic GR showcases a customised G&P M4. The base gun for this customization is the G&P M4 itself, which has been enhanced with several upgrades. These include the BTC SPECTRE MK1, TINLEY 25K, and the Lonex spiral bevel+pinion. Furthermore, a 13:1 (SS - 3) has also been added to the mix, contributing to the overall performance of the customised AEG.

Airsoft Mechanic GR has showcased another custom work, a VFC M4, built to operate at 1.6J and 30 RPS. The customizations include a 30K boost motor, 13:1 gears with a short stroke of 3, full Lonex compression, and an advanced Gate Titan. It also features a Prowin on a Prometheus R-hopped barrel among other enhancements. To top it all off, it sports a full dusty paint job, adding to its unique appeal.

Airsoft Mechanic GR showcases a customised Krytac Trident LMG AEG, which boasts a power of 1.5J and a firing rate of 30 rounds per second. The customisation includes a Gate Titan, a 40k Boost ASG, and an 18:1 steel gears of (SS-3), among other enhancements. This intricate work results in a high-performance airsoft gun that stands out in the field.