ATI SUB-9 Complete 9mm PCC Upper Assembly Kit

Introducing ATI Airsoft’s All-in-One Airsoft System—a game-changing upgrade designed to simplify your build while boosting performance. Combining handguard, receiver, and outer barrel into a single 3D-printed component eliminates wear points common in multi-part setups, ensuring smoother operation and longer-lasting durability. Engineered specifically for 145mm inner barrels, this system delivers unmatched stability and accuracy straight out of the box.

The advanced 3D printing process ensures lightweight yet rugged construction that resists deformation during intense gameplay. At its heart lies a specialty two-part gearbox—a smart design that prioritizes ease of maintenance over complexity. Swap springs or adjust internals without disassembling your entire rifle, saving time between repairs and upgrades while maintaining peak performance.

Designed by airsoft experts at ATI Airsoft, this system strikes a perfect balance between functionality and customization. Its streamlined profile offers comfortable handling while leaving room for standard accessory mounts so you can tailor your setup precisely to your needs. Unlike traditional parts that require piecing together multiple components, this all-in-one solution cuts down assembly time while offering superior reliability—making it ideal whether you’re building a competition-ready rifle or upgrading an existing platform.

With its focus on user-friendly design and battle-tested engineering, this system stands apart from conventional airsoft parts by prioritizing convenience without compromising on quality or precision.