Model Number : GP-WP150B
Frame Set Reinforced Upgrade Parts
#1-WA Selector/Pin/Spring
#2-WA Bolt Stop/Spring/Pin,Firing Block/Pin,Firing Pin/Spring
#3-WA Forward Assist/Springs/Pins
#4-WA Trigger/Spring/Pin, Sear/Spring
#5-WA Magazine Catch/Spring, Trigger Guard
#6-WA Hammer,120% Hammer Spring, Hammer Pin Set
#7-WA Hammer Lock Set
#8-WA Buffer Lock/Spring, Buffer Retainer Block, Bolt Rubber, Grip Screw
#9-WA M4 Dust Cover Set
All above parts are made by [ aluminum alloy ] <------