Zastava m70 inferior metal treatment process?

[gwgn02]

There has to be over a couple hundred thousand of those G2's sold and put into AK's of all types....the numbers reported, and mainly with the m70's is really low...you'd think there would be tons more on the forums with various other rifles with the mushrooming problem...but thats not the case.

[kalieracer]

http://www.ar15.com/archive/topic.html?b=4&f=77&t=142209

http://www.ar15.com/archive/topic.html?b=4&f=74&t=144418

http://www.theakforum.net/forums/21-troubleshooting/172700-rear-my-aes-10b-s-bolt-carrier-mushrooming.html

This happens on all sorts of rifles, both new factory guns and builds on surplus kits. This also has been happening for years on various gun boards.
The hammer profile seems to be the issue. Same reason RSA makes SAR3 specific hammer and Saiga 223 guns need to use the stock hammer.

There has to be over a couple hundred thousand of those G2's sold and put into AK's of all types....the numbers reported, and mainly with the m70's is really low...you'd think there would be tons more on the forums with various other rifles with the mushrooming problem...but thats not the case.

[ElvenSoul]

Tapco has been selling the G2 since 2007. We are just now hearing of this?

[gwgn02]

http://www.ar15.com/archive/topic.ht...&f=77&t=142209

http://www.ar15.com/archive/topic.html?b=4&f=74&t=144418

http://www.theakforum.net/forums/21-troubleshooting/172700-rear-my-aes-10b-s-bolt-carrier-mushrooming.html

This happens on all sorts of rifles, both new factory guns and builds on surplus kits. This also has been happening for years on various gun boards.
The hammer profile seems to be the issue. Same reason RSA makes SAR3 specific hammer and Saiga 223 guns need to use the stock hammer.

Its probably still only %.001 out of hundreds of thousands sold. Not buying it.

[MrPlink]

I've never heard of this.
Kinda has me paranoid now!

[BigPimping]

News to me.

[FiveSeven]

If the gun is not over-gassed it will not cause such excessive wear OR if the BC steel is hard enough it won't deform all that much especially as to cause a sticking bolt problem in OP's video. Hammer is not an issue here at all.

[hellayella]

my NPAP hasn't mushroomed, but only time can tell...