NOTES FROM LUKE:The Worker Sight Tower is a nice stylistic feature to add to the front of your blaster. Easier aim that is compatible with the Worker 19mm Extend Barrel.
FEATURES:-Compatible with Worker 19mm Diameter Extend Barrel
SPECS: -Material: PA-Weight: 180g-Model: W0106
ADDITIONAL LINKS:Worker Smooth Barrel Tube:https://outofdarts.com/products/worker-smooth-barrel-tube-multiple-sizes