Corso Inc. is a Florida based company that develops new internal parts (guts) for handgun magazines. The kits are sold under the MagGuts brand name. By swapping out the magazine internals, with the MagGuts replacements, you can add one additional round to the magazine capacity without negatively impacting magazine reliability. Unlike most other products that increase magazine capacity, MagGuts kits are designed to add capacity without changing the overall magazine length. MagGuts offers kits for several different handguns. In addition to the Glock 42 magazine kit reviewed here, they also have kits for most of …read more

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