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Magblock 10 Round Limiter for H&K MP7 4.6x30mm 30 Round Magazines

- Fits 30 round 4.6x30mm HK MP7 factory magazines.
- Limits the magazine to 10 rounds of 4.6x30mm.
- Held in place with spring tension or can be epoxied for a permanent modification. 
- Lightweight, efficient design.