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On 10/29/2020 at 10:46 PM, shep854 said:

... I'm waiting to see if/where I.O. and Century AKs fall on his list...those should be fun.

 

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2 hours ago, bojan said:

 

Good video; he covers the situation well--and yes, it was fun! :)

  I've seen the Yeager video where the barrel pin and barrel movement is shown--scary.

In the video comments, Vlad notes that this video was made in 2019, before PSA released their AK clone, which is shaping up to be pretty good.

Edited by shep854
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5 hours ago, Markus Becker said:

Ok, if American made AK are so questionable, where do the good AKs come from Americans buy? Pre import ban guns and post ban handmades both costing and arm and a leg? 

There are still a few imports.  I have a Romanian WASR that I bought several years ago for $600-ish USD.  Now they are pushing $800-1000. A couple of American companies have finally started releasing quality domestic AKs, that hopefully will be 'reasonable', around $1000 USD.  This also depends on USian politics.  

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What is AK quality? The benchmark for a long time after the ban on Russian imports (Saiga, Molot) was Arsenal(Bulgaria) SLR series. Those are now also unobtanium as Kazanlak is at full capacity servicing the middle east (Saudi, UAE etc. and clients). The major problem was the production of trunnions which need to be forged and machined. To save on this, they tried to use cast parts, with predictable results. Currently PSA and others are now starting to produce their own forged trunnions. These are doing quite nicely and will improve availability as well as pricing. Mark ups are mostly secondary and speculation.

Rifle Dynamics is usually seen as the Yoda of AKs in the US.

LOOOOONG time ago I gave Bill Geissele his first standing order for triggers. Today, he's a titan in the industry and his ALG AK trigger is really good. 

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14 hours ago, shep854 said:

There are still a few imports.  I have a Romanian WASR that I bought several years ago for $600-ish USD.  

*googles WASR* So that's how the import ban works and one works around it. 

Edited by Markus Becker
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43 minutes ago, shep854 said:

A decent explanation of problems with cast AK forward trunnions:

(...)

As Ruger is known by its proficiency in casting, I suppose that is the reason for not being Ruger-made AK clones.

I guess there are no grades of casting steel with the impact resistance of 4140, also.

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1 hour ago, sunday said:

As Ruger is known by its proficiency in casting, I suppose that is the reason for not being Ruger-made AK clones.

I guess there are no grades of casting steel with the impact resistance of 4140, also.

Good video indeed. 

Re Ruger. They cast entire recievers, not just the trunnions. A case of an overall bigger part that can take the stress even if it's made in a nominally weaker manner? 

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7 minutes ago, Markus Becker said:

A case of an overall bigger part that can take the stress even if it's made in a nominally weaker manner? 

Not necessarily. Impact stresses could appear in a localized manner, especially near stress concentration areas.

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That could be it, or not ? Kinetic energy wise 7.62 is more powerful than 5.56. Not by much but it could be just enough to make a difference.

OTOH, Ruger makes them in 7.62 too, don't they. It could be the dimensions. Or a combination of the two. 

 

KP15 polymer lower! Polymer lowers can be done but not(!) on the same dimensions as aluminum lowers. I bet that goes for cast and forged steel as well. 

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I studied metallurgy and machine design back in the day, but the real small arms specialists here are Simon, and Bojan. I know that if one varies the dimensions of certain parts, you could reduce the stresses they should cope with.

Case in point: by putting the locking surfaces the lock has to interface with in a barrel extension -using a rotating bolt, for instance- to you could use a lighter receiver, like on an AR15. If you use a mechanism with a flap locking in the receiver, then you shall use a beefier receiver, like on a BAR.

Edited by sunday
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7 hours ago, Markus Becker said:

*googles WASR* So that's how the import ban works and one works around it. 

 

The last AK I bought was a WASR in 2008. It jammed frequently and a trip to the gunsmith at the store where I bought it revealed that the piston was slightly...bent.

After repair or replacement (I forget which was done) it runs great.
 

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21 minutes ago, shootER5 said:

 

The last AK I bought was a WASR in 2008. It jammed frequently and a trip to the gunsmith at the store where I bought it revealed that the piston was slightly...bent.

After repair or replacement (I forget which was done) it runs great.
 

Mine was released after Century’s problems were ironed out (see Drunk Monkey meme) and has run like a champ.

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