FN FIVE-SEVEN MK3 10/20 MAGBLOCK (5.7X28)
SKU:
$6.99
$6.99
per item
Fits 20 round 5.7 mm Factory FN magazines.
- Easy installation at the base of the spring.
- Limits the magazine to 10 rounds of 5.7 mm.
- Held in place with spring tension or can be epoxied for a permanent modification.
- Lightweight, efficient design.
5 available