5k SL Superlite tank is 30% lighter and the PRO V2 regulator allows for a 30% increase in air flow

The two pistons are actually identical otherwise so as far as how the regulator functions

Holds 28 BBs

Both halves fit together with absolute precision including bearing holes

HPA 300 Lumen Pistol Flashlight with Strobe glow 5k SL Superlite tank isThe New High Precision Arms HG 1 is our most cost effective pistol light. The HG 1 provides users with a durable, water resistant, 1000G shock resistant, 300 lumens system. It has been tested and proven and tested with 9mm pew pew, behavior changing ammo. Lumen 300+ Water Resistant Shock Tested 1000G Get yours now at SS Airsoft.