BeastPro Upgrade: Oversized Plunger Cup BIG CHEAP increase in distance/power M4, SCAR, HK 22.8mm

  • Sale
  • Regular price $4.00


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. 

YOU ARE BUYING: 
# Oversized plunger cup increase the distance a lot. 
# 22.8mm oversized cup 

#Smoother then O'ring type 


!! Important !! You must lubricate very well or you will strip gears. 


Wave GEARbox Terminator M4 , SCAR ETC

Customer Reviews

Based on 1 review Write a review