USGI 350 Legend Magblock 5/20 (5 Round Magazine Capacity Limiter)

- Fits USGI 20 round magazines made by C-Products/Duramag. 
- This block will attach to the bottom of the spring.
- Will convert a 20 round (350 Legend) magazine to hold only 5 rounds.
- Magazines can be loaded with the bolt closed in most rifles. Fitting may be required in some cases.
- Does not affect reliability.
- No increase in spring pressure. 
-Installs at the base of the magazine.