One NoS Swiss 550/551/553 thirty round magazine. Comes with removable 10 round blocker for (convert 30-to-10 round and vice versa) for restricted states.
Note that this magazine does not work with a Sig 556 lower. This magazine is only compatible with "rocker-style" lowers.
$150 shipped.
Note that this magazine does not work with a Sig 556 lower. This magazine is only compatible with "rocker-style" lowers.
$150 shipped.
