The best replacement for chest rig is plate carrier.

The best alternatives to chest rig are rated as following:
★★★★★  plate carrier
★★★★  tactical vest
★★★★  vest
★★★  war belt
★★  plate carrier airsoft
★  lbe
★  webbing
★  assault vest
★  belt
  drop leg
  molle vest
  battle belt
  vest airsoft
  tac vest

Your alternative for chest rig is not listed? Suggest!
Speaking about chest rig, one probably shouldn't forget about battle belt.

Other search terms related to chest rig and their ratings are:
★★★★★ battle belt
★★★★★ plate carrier
★★★★ war belt
You have in mind a companion for chest rig and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of chest rig in all years. Click on graph for more.
chest rig
plate carrier
tactical vest