Safariland 3004-1 Replacement Elastic Leg Strap Gear Aid The Ops-Core Helmet Cover is

The Ops-Core Helmet Cover is a lightweight accessory for shell protection and signature management

This is the major difference between the two

The chest rig features two radio/general purpose pouches that will accommodate several types of radios including (but not limited to) PRC-148

they hold TONS of patches

Safariland 3004-1 Replacement Elastic Leg Strap Gear Aid The Ops-Core Helmet Cover isThe Model 3004 1 are replacement leg straps for Safariland tactical holster models. For use with the Safariland Universal Belt Loop (UBL) Mount to stabilize the holster and prevent torque when drawing the pistol. This is the same strap found on Safariland Leg Shrouds.