Sunday, August 16, 2015

Trigger Mechanisms of the AR-15 and the M16

A little while back, we studied how the trigger mechanisms of the AR-15 and M16 rifles work, complete with a video with animation explaining the concepts.

In today's post, we will look at a couple of videos that show the actual parts, instead of a 3-D Solidworks animation.

First up, an explanation of the AR-15 trigger mechanism:

Next, we have another video, that discusses the trigger mechanism of a M16 and compares it to that of an AR-15

Note that the M16 trigger mechanism being discussed is the M16-A1 model, which is capable of firing in semi-auto (single shot) and full-auto modes (unlike the M16-A2 and A4 models, which can fire in semi-auto and 3-round burst modes only). The AR-15 is capable of semi-auto fire only.

Happy viewing.

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