Bolt Carrier exhaust vent size variations
Prepare to be disappointed because i have no pictures. However, I was thinking about the size disparity in the exhaust gas ports of various bolt carriers.
I have noticed that BCM, Colt, and LMT all tend to have noticeably larger exhaust gas vent ports in their bolt carriers as compared to many others I've seen.
I know that the exhaust gas ports only play a part in the function of the rifle system, but this occurred to me recently (call it an epiphany). I'll do my best to gather some pictures in a few minutes.
Some notes: This is not a **** measuring contest, comparing the above listed manufacturers to others and holding them out as supreme. I want to discuss WHY the ports of most other carriers are smaller....whether good or bad. This is to be a technical discussion, not brand war.