M4A1 CUSTOM HOPUP 2020 HIGH FPS VERSION GEL BALL GUN M4A1 GEN8 LONGSHOT: BeastPro Upgrade

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  • Regular price $24.99


NEW VERSION 2020

Beast designed and manufactured PRO LONGSHOT Hopup. Adjustable and super flexible to work with a wide range of FPS. This version is for the M4A1 GEN 8

Hop-up is the back-spin put on the gel balls to increase their range via the Magnus effect. A Hop-up  puts backspin on the gel balls reducing the air pressure on its top side.


Also tested to work perfect with 1.2mm, 1.3mm, 1.4mm spring upgrade + motor, plunger and gear upgrades.

We have done all the hard work and spent a lot of money in research for you and these parts that I am now selling are the best and will be the right type of upgrade that will give you the best benefits. These parts are limited so first in first served. 

YOU ARE BUYING BEAST CUSTOM HOPUP: 
# Beast LONGSHOT latest Hop Up upgrade for the M4A1 GEN 8. 
# Adjustable airflow take control of your fps!!! 
# Increase distance and accuracy A LOT! 
# Forces the balls to back spin. Also can Control left a right swing by rotating it. 
# Eliminates bullet arc. 
--Use with 7-8mm balls 

☠☠These give such a great advantage it's literally unfair for anyone else without one