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MGI’s Hydra QCB-D

by David Fortier   |  April 5th, 2012 6

Previous multi-caliber guns have been horrendously expensive and availability of spare barrels and parts has been negligible. Here’s a swap-barrel gun that uses standard AR barrels. Read more about it in the 5/10 issue of SGN.

MGI's Hydra

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MGI's Hydra appears to be a standard 16-inch 5.56x45mm AR, but it's a very interesting piece that is quickly and easily changed to match a user's needs.

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