Sig Sauer 550 Magblock 10 Round Limiter for 30 Round Magazines

This Magblock fits the Sig 550, PE90, and SG 550 30 round 5.56mm magazines and will limit them to 10 rounds.  Easily installed in seconds at the base of the spring. It is held in place with spring tension alone or can be epoxied if desired.

- Simple install to make 10/30 Sig Sauer 550 5.56mm magazines.

- No significant modification to the magazine is required.

- Lightweight and will not interfere with magazine reliability.

- Tested on Sig 550 factory plastic magazines.