STI Magblock 10/16 (9mm) for 120mm Magazine
- Easy installation into the follower
- Fits 16 round 9mm Factory STI 120mm magazines
- Held in place with spring tension or can be epoxied for a permanent modification
- Lightweight and will not interfere with magazine reliability
- Lightweight, efficient design
- Limits the magazine to 10 rounds of 9mm
- May need sanding shorter if your magazines have a floorplate locking plate
- Model: STI_120MM_9MM_10_16
- No modification to the magazine is required
- Simple install to make 10/16 STI magazines
- Tested on factory STI 120mm magazines; the block may need to be modified to work with magazines from other manufactures or sizes