HPA 6mm 500 Count Biodegradable BB's 0.48g BB's Package includes both clockwise and

Package includes both clockwise and counter-clockwise thread adapters

or front handguard

FPS Range: 350-375

The Echo1 M28 utilizes several barrel stabilizers to keep the inner barrel secure ensuring accurate shots each time

HPA 6mm 500 Count Biodegradable BB's 0.48g BB's Package includes both clockwise andHigh Powered Airsoft 0. 48G High Power Airsoft Enhanced Biodegradable BBs are the worlds only Bio BBs to be tested and conrmed biodegradable by an accredited U. S Laboratory. They have passed an intense quality control system. They conform to the EU EN13432 standard of degradability and the ISO standard 3290 2001 G3 which is the highest industry standard for precision rolling bearings.