Barrel end diameter? AA S410 / TDR / S400 MPR

 Silly answer of the day ....................................................... you'll need to measure or ask dealer/owner.

Most - ? - AAs410 model's had the 16mm shroud , 510 would hhave the lesser effective 20mm shroud. MPR has a .552 dia. barrel ( most with 16mm shroud have an even smaller dia ) and somewhere in the back of my mind I'm thinking the TDR came in at least 2 different ( barrel/shroud dia ) models?

"S"410 is/was a transitional model using up the last of the old parts before switching to only the side lever S510/500. That's in the US, oither areas may well use different parts.


John