Why don't manufacturers offer airgun kits As an option? Using the FX Impact as an example only, many of us have learned a lot from the Masterclass series. Many of us spend top $$ for a high end airgun, then take it completely apart to polish the valve rod, hammer carrier, trigger parts, upgrade fasteners and o-rings and install mods. Why not just sell the gun as a kit like AR's And let the user assemble changing things to their liking? What better way to learn your gun than by assembling it yourself?