Customer notice: Small-batch CNC production — limited quantities available.


One (1) CNC-machined Valve Stem & Poppet Replacement

Restore smooth, reliable operation to your airgun with this precision-made valve stem and poppet assembly. Designed as a high-quality replacement for the original components, each unit is manufactured in the UK using CNC-machined materials for long-lasting durability and repeatable performance.

The poppets are available in Delrin, or PEEK — giving you the freedom to choose between cost-effective reliability or premium-grade, wear-resistant materials. Each poppet is CNC-produced for precise seating, and press-fitted to a stainless-steel stem for a consistent, dependable seal.



Airgun model compatibility

  • Crosman 1377

  • Crosman 1322

  • Crosman PC77

  • Crosman 2289

Replacement part for the above multi-pump pneumatic airguns which requires some light modification to the valve housing sealing face or "knife edge". This is achieved by using the valve stem and poppet sold in this listing to flatten the knife edge to give the new poppet a seating face to seal against. Research this before purchase, you can find information on most airgun forums or contact us for details.



Material options



Key features



Short usage & safety notes (Must-Read)

As with any internal airgun component, small changes in condition or seal fit can influence overall operation. We recommend testing your airgun with a chronograph before and after installation to ensure it remains within your local legal limits.



Need something custom?

We also design and CNC-machine bespoke airgun components.
If you need a specific size, flow profile, or new idea — we can build it.