TTI STI SVI Ultra Thin +1 Follower
Our ULTRA THIN +1 follower for STI and SVI mags are compatible with all new production 9mm/38 STI and SVI 140mm tubes with no modifications when used with our 140mm 2011 Spring. Use 4mm Base Pads for STI tubes and 3mm Base Pads for SVI Tubes. MBX magazine tubes will need 7mm Base Pads (Slight fitting required when using MBX tubes). Use our 11 Coil Spring for 140mm Magazines and the 13 Coil Spring for 170mm.
140mm Capacitywith TTI Ultra Thin +1 Follower, TTI 2011 140mm 11 Coil Spring and TTI 2011 Base Pads (STI/SVI Mag Tubes)
9mm/38 23+1
170mm STI Magazine Capacity with TTI Ultra Thin +1 Follower, TTI 2011 170mm 13 Spring and TTI 2011 Base Pads (STI Mag Tubes)
9mm/38 29+1
*170mm SVI Magazines will require tuning to use the Ultra Thin +1 Follower
We also provide tuning services for the older SVI magazine bodies please call (805) 522-1911 for more details.
Get the most out of your magazines by including TTI springs and base pads in your magazine set-up.
- STI 9mm/38 (23+1): TTI Ultimate Follower, 140mm STI Tube, TTI 11-coil Spring, TTI 4mm Base pad.
- SVI 9mm/38 (23+1) TTI Ultimate Follower, 140mm SV Tube, TTI 11-coil Spring, TTI 3mm Base pad.
- SVI 9mm/38 (24+1) TTI Ultimate Follower, 140mm SV Tube, TTI 11-coil Spring, TTI 7mm Base pad (OPEN Division).
- MBX 9mm/38 (23+1) TTI Ultimate Follower 140mm SPS Tube TTI 11-coil Spring TTI 7mm Base pad (Minor tuning required).
*Follower is compatible with MBX base pads
Dawson Precision
As mentioned in the Dawson mag tuning video. Light filling needed to dress edges. Ran flawless .
Good follower
I replaced my Gram followers with the TTI ultra thin. It allows 30 unreloadabe/29 load able in my 170 sti mags. Works great in my gen 2 mags. These will not work in my gen 1 STI mags. A round gets stuck between follower and mag body if you load to full capacity!