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.
This metal plunger head fits the standard M4A1 GEN8 plunger and is perfect for those looking to do some cheap upgrades.
Works best with the original and stainless steel cylinder
YOU ARE BUYING BEAST UPGRADE:
# 1 X M4A1 GEN8 alloy plunger head with upgraded ORING