the feed system for hicap mags is a spring loaded drum in the bottom of the mag, with no BBs it will spin and release all of its tension loudly, and it wont feed the 20 or so BBs that sit above the feed wheel
also, fire the gun without the mag, if it still makies the screeching its the motor, theres and adjustment screw on the bottom of the pistol grip, the screw you see might be the adjustor, or it could just be a plug covering the adjustor, it depends. on the gun
Words to live by
Originally Posted by Kid
The apartment I am in right now costs $100 a month.
My average spending on food per day is less than $4.
My airsoft spending in the last month and a half has totaled over $1400.
They're called priorities. Get yourself some.
Last edited by Thenooblord; December 6th, 2012 at 15:13..