VMP-2 Prototype Piston

This is a replacement piston for the Vorsk VMP-2 series. It uses an o-ring instead of the rubber cup that the OEM piston uses,

Designed because it is hard to obtain original pistons and piston heads, made from a tough impact resistant resin.

NOTES: When in use the nozzle may retract so far that the o-ring gets exposed and can pinch. If the nozzle jams in the forward position this is what happened, pull it forward to release the trapped o-ring and you should be able to release it and return to the correct position. We recommend use of the included short-stroke block to prevent this happening. The block slides into the BCG at the front above the nozzle, it shortens the stroke of the nozzle by just enough to never expose the o-ring, and is held in place by your existing charging handle. (See pictures)

This is a prototype, it may break or otherwise fail, please report and photograph if it does and we will use that to improve the product and will likely send you future revisions.

Contents: Piston, 9.5mm ID 2mm o-ring, short-stroke block.