Posted June 17, 2016 10:09 am by Comments

By Nathaniel F

This short-recoil operated SIG P220 uses a tilting-barrel locking mechanism. You can see how the slide is prevented from moving rearward by the front surface of the barrel in this image.

In the second of our 101-level discussions on firearms operating mechanisms, we mentioned that firearms may have what’s called a locking mechanism, which prevents the separation of the breech and barrel during the high pressure ignition of a round of ammunition. For 101-level posts, we’ll mostly note whether locking occurs or not and nothing more, but […]

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Source:: The Firearm Blog

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