Diana 460 PG4 Delrin Glide High-Output Kit

APPLICATION:Drop-in Pro-Guide4 Tuning Kit for Diana 460 Performance: High Output Velocity (HOV)Full power up to 24ft/lbs in 22 caliber. Product Codes: PG4D460-825128-32Hth  Content: (PG4D) ProGuide4 DELRIN Glide Tune KitHigh Yield valve wire open-end power spring Quad 3X guide with 1-Helical Lubrication for damping of metal, plastic and seals (Highly Recommend Vortek (ProSEAL28) optional Installation:  For Consideration when tuning power:It is the owner's responsibility to ensure legality of their air gun power output.Vortek’s Location of testing is approximately 578 Feet. Above. Sea. Level. (F.A.S.L)For every 1000ft above or below will be approximately .029 difference in velocity, thus foot-pound (Ft/lb., Joules) of shooting energy.1000 F.A.S.L. x .029 = 29fps approximatelyJoules= .7475=ft/lb. Easy, do-it-yourself with some pre-load force on assembly. Works will all trigger arrangements.