This piston is compatible only with the Ramset Cobra PLUS that includes power adjustment.
It is NOT suitable for the standard Ramset Cobra without power adjustment.
There are two other variations of the Cobra PLUS.
This piston is specifically designed for the Cobra PLUS that features a buffer and a fastener guide that screws into the barrel.
It is NOT compatible with the Cobra PLUS that has a front and rear barrel connected by a shear clip (Old Style).
Additionally, it is NOT intended for the Cobra PLUS with a plastic housing and silencer (Newest Style).
Please check your tool manual to confirm part #SC395320.

Piston replacement. Designed to perfectly fit a range of models, including BP-301C, PT-27, HILTI DX350/DX2, PA3500, and Ramset Cobra, this universal piston ensures a seamless installation process. Made from premium materials, it offers exceptional durability and reliability, making it the ideal choice for both professional and DIY applications. Upgrade your tools with this genuine OEM part and enjoy consistent, high-performance results every time.