EFK Barrel, 52381, HK USP Full Size, 357 Sig
By JL
Review Date: 09/24/2009
Rating:
Purchased From This Site: Yes
2009 model, H&K USP Full Size .40 S&W
The conversion works perfectly, just drop in the .357 Sig barrel and you''re good to go! The .357 Sig uses the same magazine as your .40 S&W, so no need to buy anything but the barrel.
This barrel is really nice. It is about a six-tenth of an inch longer than the factory barrel. It also didn''t fit initially, but with some slight water sanding (1200 grit) to the very end of the barrel in tiny amounts to decrease the diameter by maybe one thousandth or so, it fits perfect and easily out performs the factory barrel in accuracy.
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