Both halves fit together with absolute precision including bearing holes

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

Lightweight polymer receivers and handguard reduces player fatigue

Folding vertical support grip

HPA 300 Lumen Pistol Flashlight with Strobe glow Both halves fit together withThe 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.