I would actually consider an aftermarket barrel (i.e. Lone Wolf, KKM, Barsto, etc). The chambers on the Glock barrel are loose-fitting (for reliability). This causes the brass to get more worked each time you shoot it and shortens the lifetime of the brass. A LoneWolf barrel is around $120. Considering the scarcity and cost of 10mm brass, it's not a bad investment.
Glocks don't kill tanks. 1911's Kill Tanks
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