MBX Limited 10 Round 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 Limited 10 Round Springs
Limited 10 Round Spring & Competition Follower Set for 140mm & 126mm MBX STI/SVI Style Tubes (Will not lock slide back when empty)

Limited 10 Round Spring & Slide-lock Set for 140mm & 126mm MBX STI/SVI Style Tubes (Will lock slide back when empty)

California Legal

Only for 10 Round MBX Magazines

Spring can also be used with Slide-lock or Competition Follower

MBX Z-Max Limited 10 Round Spring for 140mm & 126mm MBX STI/SVI Style Tubes
Single Springs
5 Pack Springs
MBX Magazines & Parts for Limited 10 Round STI/SVI & all 2011 Pistols!