For sale are nine (9) 26 round .45 ACP mags for your Glock 21. Seven of the mags are made by SGM and two are unknown (maybe KCI), all made in Korea. As shown, four of the SGM magazines are new in wrapper. These typically retail for at least $20 each. Asking $135.00 OBO. Not desperate to sell, just getting rid of unused gear. No scammers or lowball offers. Cash in king but I wiill trade for Glock 21 10 / 13 round mags, Canik TP9 series or S&W M&P mags. Text only to 386-406-0410. Happy holidays and thx for looking.