AR 15 Armorer’s Course

[montana]

LR52:

I think what these guys do is bodge the blaster together and then deliberately put in a oversized gas port to compensate for otherwise poor and out of spec parts, slapped together enough that it won't fall apart. The oversize gas port allows it to function and for most people, that is good enough.

LR55

Yup, it is shameful what some manufacturers put on the market and sell to gullible customers..Using out of spec (inferior) parts, the plethora of different manufacturers and custom parts that don't mesh together and slip shod building practices is a guarantee set up for failure.. There is a reason why all things of mechanical value have specs/tolerances and a complete understanding how the parts function together..