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Will get some photos up later. No modifications at all, just remove the front sight on the 870. It's a collet type arrangement so you just put a stainless sleeve over the barrel, slip on the adapter...

Doing it at the moment - 18" barrel with a slip-on suppressor from the UK.
Just starting to develop the subsonic 12ga steel and lead loads, waiting for the reloading data to arrive from the USA.
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