"h" Marked Blued Bar Mags

[leid]

Hi guys,

I am looking for info on BLUED finish BAR mags with "H" stamped on the left of the mag body, follower, and floorplate. The mags are individually wrapped in red cellophane. If you know a military mag manufacturer who used the "H" logo or this type packaging, give me a rundown on them.

THANKS

Carey