Below are some good places to buy the Korean Magazines.
Centerfiresystems 15 Round
Centerfiresystems 30 Round
Aimsurplus 15 Round
Aimsurplus 30 Round
Sarco 15 Round
Sarco 30 Round
Gunmagwarehouse 30 Round
Gunmagwarehouse 15 Round
Keepshooting 30 Round
Keepshooting 15 Round
Inland Div of General Motors AI A1 IA II UI KI II [circled] Saginaw Steering Div of GM KSG S'G' OI-S'G' G-S'G' SP-S'G' --and some more Saginaw codes... U-S'G' O-SG K-S'G' IBM SY-B OI-B OI B International Silver IS Irwin Pedersen K-IP I-P-K IP-I C-IP National Postal Meter UN MN Quality Hardware UQ QU G-Q Rock-Ola IR R-C RO RC R-G UR Seymour Smith SS SS-4 R-SS Standard Products SO Underwood IU LU UU IU [circled] Union Hardware U Wade Electric Products WEP [in curved type] Winchester BW IW UW IW [circled] C UP SI [circled] International Silver B [circled] subcontract from Bridgeport Seymour Products SEY Unidentified AYP Unidentified J Unidentified K Unidentified M2