Take a look at this build by Stupid Airsoft which is a 3D-printed bullpup SMG body kit for the AAP-01 airsoft pistol, a design by Tactical Index. He printed the multi-piece kit using durable ABS plastic and coated it with a truck bed liner for a non-slip finish. Key features of the finished product include compatibility with Glock magazines and a functioning bolt lock, transforming the standard pistol into a unique submachine gun replica.

El Bridos 5.95 explains his decision to build a rifle piece by piece to create a unique and reliable primary weapon. He shows the key components used, including the external parts like a Geissele MK16 handguard and a Geissele-licensed body, as well as the internal parts such as a Perun MOSFET and a Solink Advent Plus brushless motor.

The favourite Ruger 22-style for airsoft, the KJ Works KC02, gets customised by the 6mm Badger. Initially, he streamlines the front handguard by removing the bulky rail covers and picatinny rails. Following this, he enhances the rifle's feel and ergonomics by replacing the original pistol grip with a high-quality PTS grip and swapping the stock for a more comfortable Magpul CTR. To finalize this initial stage, he installs a reproduction Aimpoint T-2 sight, aiming for improved precision.