[jhoffman]

Do the original Romy brakes have half-moon or any gas slits?

What is the design difference from Russian other than diameter?

THX fer lookin'

 

[Baker47]

Are you referring to AKM slant brakes or AK74 style brakes?

If you mean the 74 style, they do not have any openings on the muzzle/front side other than what the bullet passes thru.
They just have the round holes on the body portion.

 

[nalioth]

Do the original Romy brakes have half-moon or any gas slits?

What is the design difference from Russian other than diameter?

THX fer lookin'

You will find all the answers you seek in this thread:

http://www.theakforum.net/phpBB2/viewtopic.php?t=43693