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Mag catch retaining pin fell out

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Anyone have this happen to them while shooting? I know the S12 Mag catch is different from a standard ak. Anyone have a good fix to keep the pin in? 

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That pin is supposed to be retained simply by having a tight fit.  So sometimes there are loose tolerances in the manufacturing and you will have a loose fit.  Especially if your gun is a Catamount Fury which it might be?

You want to increase the tightness of the fit.  If it is a roll pin (looks like a rolled up piece of sheet metal) you can expand that slightly with a center punch on 1 end, (the end that goes in last)

Also, pins should be hammered in left-to-right and removed right-to-left.  This is assuming that the gun was manufactured with the normal conventions where friction-fit pins have the holes on the right side slightly smaller.  (This is assuming a lot considering where these come from) (and you know what happens when you assume - - - you turn into a complete asshole).  If the gun was built this way, it is possible that somebody hammered the pin out left to right and enlarged the hole, losing the tight fit.

If it is a solid pin, you can peen the inside of the right side hole of the gun with a punch to close it sightly and give it some tightness.  You basically want to take the properly sized pin punch, and go thru the left side hole but then have it sit halfway onto the ledge of the right side hole and peen it around to reduce the hole opening a little bit.

Like any type of hammering on your gun, you want it solidly on a bench block that gives support exactly where the pin hole is

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It's a Saiga 12 with over 2000 rounds through it. The solid pin doesn't seem to be a tight fit anymore and it's the exact width of the tangs coming of the receiver, so I can't really peen the pin.  I've found a small enough bolt that's the same diameter as the original pin to use. So I now have a bolt, lock washer and nut that's loc-tited in place. Hopefully it will never come loose again.

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