The FAB Defence TZ-M4 allows staggered coupling of a pair of M4/STANAG metal magazines for rapid reloads.
Staggered magazines allow the lower mag to sit will clear of the ejection port when using the second magazine.
Made from a tough polymer they are durable, lightweight and easy to fit.
Works with metal STANAG format magazines including:
- USGI Aluminium magazines
- HK 416 magazines
- UK MOD steel HK magazines
- Galil 5.56 magazines
Does not fit polymer magazines.