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Shrike jam


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#1 brucea4

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Posted 15 April 2019 - 10:05 AM

Anyone experience a jam like pictured with the Ares Defense Shrike?

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#2 johnsonlmg41

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Posted 15 April 2019 - 08:55 PM

I have seen it, but not personally experienced it.   The round does not nosedive fast enough because the topcover may not be closed all the way, or the feed tray has issues?  I made a feed tray back when they were shipping them with alum trays since I assumed they would get torn up.   I made one old school from an FN stamped tray the way Ares did them back before they milled them.  Guys refer to that as peening near the entrance to the barrel if it hits often enough.   Some have a relief cut in that area to help ramp the feeding?   That's really the only part of the design he screwed up where the tray should be a little lower in the receiver, but then you have the bolt to contend with.  There's a guy that sells an O ring to put under the upper pawl to force the round down harder, but that's a stopgap measure when the real problem can be the feed tray if you've exhausted all the other issues? 

I learned a ton about the system by making and fitting the feed tray.....but that was back a few years ago about 50 gun repairs/rebuilds back.  HTH


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#3 brucea4

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Posted 16 April 2019 - 01:49 AM

Interesting and thank you....


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#4 brucea4

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Posted 17 April 2019 - 10:32 AM

I have seen it, but not personally experienced it.   The round does not nosedive fast enough because the topcover may not be closed all the way, or the feed tray has issues?  I made a feed tray back when they were shipping them with alum trays since I assumed they would get torn up.   I made one old school from an FN stamped tray the way Ares did them back before they milled them.  Guys refer to that as peening near the entrance to the barrel if it hits often enough.   Some have a relief cut in that area to help ramp the feeding?   That's really the only part of the design he screwed up where the tray should be a little lower in the receiver, but then you have the bolt to contend with.  There's a guy that sells an O ring to put under the upper pawl to force the round down harder, but that's a stopgap measure when the real problem can be the feed tray if you've exhausted all the other issues? 

I learned a ton about the system by making and fitting the feed tray.....but that was back a few years ago about 50 gun repairs/rebuilds back.  HTH

How would the Shrike operate to begin with if the top cover is not closed all the way?  I will get several rounds out until one of these jams occur....


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#5 brucea4

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Posted 18 April 2019 - 10:58 PM

I double checked the top cover.  It is either closed or open, no in between.  So I don't think that is my problem....


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#6 DINK

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Posted 19 April 2019 - 06:23 AM

The early versions of the Shrike would allow the point of the bullet to rise up while being fed into the chamber and strike the receiver just above the barrel.  The receiver being aluminum, it would develop a divot there and provide a nice spot to catch bullet noses and bring the gun to a screeching halt.  Mark Genovese of Maui Arms developed a neat little plastic guide that goes into the empty space in the front of the top cover which guides the nose of the bullet down and into the chamber like it should travel.  Unfortunately, he is no longer making them and someone else has said they were going to start, but I don't recall where I saw this.

 

ARES has dealt with the problem with a big ugly (in my opinion) block of steel in the front of the receiver.  It also works, but is (once again- my opinion) a clumsy solution to the problem.  I would inquire about the Maui Arms block or clones of it around sites like AR-15.com and see if one is available yet.  I have one in my Shrike and it solves the "high bullet" problem very nicely.

 

Edit- I just found the thread in the M-16 forum in the "Armory" section of AR-15.com and posted an inquiry about progress on the guy's plan to replicate Mark's guide block.  The thread is titled "Mark Genovese's Shrike/MCR bullet guide".  If he actually proceeds with this, it would be a cheap and easy way to correct a known flaw with the early Shrikes.

 

https://www.ar15.com...103675#i5103675


Edited by DINK, 19 April 2019 - 07:30 AM.

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