DogT
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- Joined
- Jan 20, 2009
- Messages
- 7,394
My APR 69 production date S model had baffles in the very end of the silencer, right at the widest part of the peashooter. There were no holes in them as I remember, but I have the pictures somewhere if you care to see them, lighted from the inside so you can see what's in there. I didn't have any issues with vibration. Actually my vibration came after I got newer 'donuts' for the isos which I assume were stiffer than the originals.