Here you can find simple guides to improve any of the blasters I own with basic materials and tools. There is nothing complicated or dangerous here. These videos show internals, describe how to open blasters and general modding tips. My more complicated mods that require CPVC and Brass are in advanced mods.
For most of these mods all you need is a screwdriver and a hobby knife:
MAVERICK:
SPECTRE:
NITEFINDER:
TECH TARGET (Vintage):
BIG BAD BOW:
STRIKEFIRE:
REFLEX: