*Designed to work with TTI Follower.
- TTI Magazine Spring for STI, SV, & Rescomp Magazine Tubes 11 coil (140MM) magazine spring for the TTI competition follower.
- Designed exclusively by ISMI to work only with the TTI follower and made with ISMI quality and precision.
- Each coil compresses and stacks into the neighboring coil to provide the highest capacity available in your magazines.
- Use the TTI Mag Spring with the TTI Base Pad and TTI Follower for maximum capacity.
Please check your local and state laws before purchasing. If your order needs to be refunded due to compliance issues, you will be subject to all applicable fees. Please see our Returns/Cancellations Terms for more information.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov