RE: horizon hobby
Concerning the T-34 Steve, it doesn't come with 'em! Retracts that is....so YOU can buy your brand (Dave Brown, B&D, etc) and install those.
My T-6 right strut would fold (not the retract mechanism) during taxiing - so some Robart Struts replaced the kit's choice.
I'll repeat, when you get the T-34 it comes with fixed gear and YOU have to supply the retract unit.
Jerry