MBX Z-Max Springs
for MBX STI/SVI Style Tubes

All components are designed to work with MBX tubes. Other manufacture parts may be used in conjunction with MBX parts, components, or tubes but may require adjustment/fitting for maximum reliability.
MBX Z-Max 11 Coil Springs
MBX Z-Max 11 Coil Spring & Competition Follower Set for 140mm & 126mm MBX STI/SVI style tubes
MBX Z-Max 11 Coil Spring for use with 140mm & 126mm MBX STI/SVI Style Tubes
Single Springs
5 Pack Springs
MBX Z-Max 13 Coil Spring
MBX Z-Max 13 Coil Spring & Competition Follower Set for 170mm & 155mm MBX STI/SVI style tubes
MBX Z-Max 13 Coil Spring for use with 170mm & 155mm for MBX STI/SVI Style Tubes
Single Springs
5 Pack Springs
MBX Z-Max Hi-Cap Slide-Lock Spring
MBX Z-Max Hi-Cap Slide-Lock Spring & Slide-Lock Follower Set for 140mm & 126mm MBX STI/SVI style tubes ~ Loss of 1 to 2 rounds
Not for use with MBX 10 Round Magazines

MBX Z-Max Hi-Cap Slide-Lock Spring for use with 140mm & 126mm for MBX STI/SVI Style Tubes ~ Loss of 1 to 2 rounds
Single Springs
5 Pack Springs
MBX Magazines & Parts for STI/SVI & all 2011 Pistols!