Merr-Sonn Power 5 blaster build

Ever since finding my old Airsoft Mauser-gone-DL44, parts of which were poorly don and broken, I've been wanting to build a Power 5 blaster. All while looking for parts for the ribbed tubing along its sides, I've started building a flash-hider for it.
It's made of a plastic bottle neck (with a small metal funnel inside for reinforcement, the slope of which didn't match, hence the plastic bottle), and part of a garden hose.
Consider it a start...