H&K AR-15 Polymer Gen2 PM Stanag Magazine Magblock 10/30 Limiter

- For use in polymer 30 round Gen2 PM Stanag magazines as pictured.

- These blocks will convert a 30 round magazine to hold only 10 rounds.

*This block is desinged for the polymer magazine in the pictures only. 

*This block allows you to use your factory locking plate. To use this block, you will need to bend the bottom spring end just a little bit, so that the magblock can sit in place.