ASPUK Custom Built Upgrade Service Includes, Advanced Upgrade: EZ Trigger + Advanced Piston Steel Spring Guide M150 Spring Blackened Coated Steel Cylinder Advanced Steel Cylinder Head Advanced Hop Lever Barrel Spacers PTFE Tape Mod Hop Bucking onto Barrel PTFE Tape Cylinder Head Thread
 
Advanced Plus Upgrade:
EZ Trigger + Advanced Piston Steel Spring Guide
M150 Spring
Steel Cylinder
Advanced Steel Cylinder Head
Shooter polished Stainless Steel 6.02 tb barrel
Air Seal Hop Up Chamber
Barrel spacers
PTFE Tape Mod Hop Bucking onto Barrel
PTFE Tape Cylinder Head Thread
 
All Upgrades Also include an ASPUK Service Record Book,
BB Weight to use: 0.32 to 0.45g Service,
Labour and Return 48hr Postage