Mag swap

[PANZER22]

I have two 30 round Umarex (Walther) Colt M16 or C 4 22 caliber magazines (will also fit (Walther) HK 416d 22 cal ARs).......Will trade even for two 20 round mags for same.....

I do not like the 30 round mags and have only used them twice.