The ProWin AR9 Conversion Kit Gen 2 is designed to convert Tokyo Marui / TM?spec M4 MWS GBBRs into compact 9mm?style carbines. Machined from 6061?T6 aluminum with a durable anodized finish, the kit includes a 3D?printed magwell, a reinforced short?stroke nozzle assembly, and a revised ZET plate tailored for reliable cycling. It comes complete with three ProWin G?Series gas magazines, so you?re ready to play right after installation. Also included are the necessary modification tools. Please note that DIY modifications to the trigger box and bolt stop assembly are required for proper fitment. The kit delivers robust performance, improved gas efficiency, and a snappier recoil impulse?all while retaining the familiar MWS platform.

Key Features

• Includes a 3D?printed magwell for smooth magazine handling.

• Comes with a reinforced short?stroke nozzle assembly and a revised ZET plate for reliable cycling.

• Supplied with three ProWin G?Series gas magazines ? ready to use after installation.

• Includes modification tools to assist with installation.

• Requires DIY modifications to the trigger box and bolt stop assembly for proper fitment.

• Delivers snappier recoil, improved gas efficiency, and a compact 9mm?style carbine feel.