The Mrodair "master Tune" kit, is a set of parts. tools and accessories, to make the P-12 experience much more personal.
This is the same kit we use to tune the P-12 for our customers.
Extra Set of high quality replacement orings
Air tube wrench
Light hammer spring .005" under factory wire size
Heavy hammer spring .005 over factory wire size
2 plastic cleaning rods
This makes the P-12 much easier to make your own.
From tuning for power, consistency and pellet weight, to servicing and adjusting to your requirements.