We will be closed on Monday, October 2nd

Diana 430-PG4 STEEL Tune Kit (VTK-MA-005)

Regular price $169.99

A THICKER, heavier machined Steel outer-guide that brings beam strength IN-LINE quickly dampend shot harmonics with two synthetic internal damping guides. Both near equal length including our NEW machined 1 pc HELICAL GUIDE slip fitted into a high-yield, open-coil spring wire. This design allows use of both end coils for more accurate power output across same product line. As well as providing the user an easier cocking effort at full power output!  This kit eingineered for all calibers small and large, old and new Diana trigger arrangement. Will not over shoot older warn tolerance of compression tube. We also offer custom mfg spring coil count, more or less power output at no addition cost. ~Very quick, liner firing movement consistent deviations shot after shot. EZ installation!

Performance: High Output (HO)
High-Ouput full power 
850+fps(.17cal)250 m/s CP7.9g

Product Code: PG4sD43078012029Hth
Mfg date as of 02-01-2021
  • (PG4sProGuide4-STEEL drop-in Kit
  • High Yield valve wire open-end power spring
  • Triple guides with Helical 
  • Lubrication for damping of metal, plastic and seals 
  • (Highly Recommed Vortek Pro-SEAL 28m) optional