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Posted: 9/16/2009 3:38:32 PM EST
Newbie Q again:

What's up with the 14mm threading on some AKs? Seems like the "standard" is 24mm.

Is 14mm a problem to avoid or something else??

Link Posted: 9/16/2009 3:49:54 PM EST
Standard thread for 7.62 x 39 is 14mm left hand.

For the 5.45 X 39 AK74 the front sight base has a 24mm right hand thread (Russian and Bulgarian). Romanian 5.45x39 has a 22mm thread.
Link Posted: 9/16/2009 3:57:59 PM EST
thanks scromer. Stupid question, easy answer.
Link Posted: 9/16/2009 4:39:14 PM EST
Much of the AK100 series has the 24mm FSB for the 7.62x39 rifles as well as 5.45 and 5.56.
Link Posted: 9/16/2009 4:52:16 PM EST
I'm not sure, but I think the 24mm thread began with the birth of the AK-74
Link Posted: 9/17/2009 3:29:44 AM EST
The larger diameter thread was used to support the much larger, heavier 74 brake.
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