You can buy original CZ 20 round magazines in 9x19 for the CZ TS 2, made in the Czech Republic. Spare magazines let you load ahead, practise reloads and shoot a full stage without refilling.
CZ TS 2 magazine: 20 rounds of 9x19.
CZ TS 2 Orange magazine: 20 rounds of 9x19.
Both list the CZ TS 2, TS 2 Orange, Deep Bronze and Racing Green, the CZ 75 Tactical Sports and the TS Orange as compatible. To add capacity or weight, see CZ TS 2 base pads. For all TS 2 parts, see CZ TS 2 accessories.