M40 badger vs dd rail

Is there any difference between the badger and dd Ross rail for clip slotted rifles? I have the badger, but wondering if I need the Ross for my m40a3 with the Ross bottom metal
There's lot's of physical differences, but the only one that really matters is the size of the rear lug. If you fit the receiver for a Badger base with a smaller rear lug, then a DD Ross base won't be able to drop into the Badger receiver cuts. If you fit the receiver for a DD Ross base with a larger rear lug, then a Badger base will be loose when dropped into the DD Ross receiver cuts.

There's plenty of other differences as well: Machining marks/patterns on the top and side, chamfer vs round corners on the rear lug, sharp edges vs rounded edges in the base's areas above the receiver port and the cantilever front end, etc.
 
There's lot's of physical differences, but the only one that really matters is the size of the rear lug. If you fit the receiver for a Badger base with a smaller rear lug, then a DD Ross base won't be able to drop into the Badger receiver cuts. If you fit the receiver for a DD Ross base with a larger rear lug, then a Badger base will be loose when dropped into the DD Ross receiver cuts.

There's plenty of other differences as well: Machining marks/patterns on the top and side, chamfer vs round corners on the rear lug, sharp edges vs rounded edges in the base's areas above the receiver port and the cantilever front end, etc.
Would it be clone incorrect to use the badger base on an early m40a3 with a MST-100 and dd ross bottom metal? And would anyone notice or care if it were not exactly clone correct?
 
Would it be clone incorrect to use the badger base on an early m40a3 with a MST-100 and dd ross bottom metal? And would anyone notice or care if it were not exactly clone correct?
Yes, a Badger Ordnance scope base would be incorrect on an early M40A3. DD Ross won the contract a year or 2 before the 2112's started building the very first M40A3's that were issued to Scout Sniper units (building A3's started on December 7, 2001). Badger didn't supply scope bases until many years later. I'll have to ask Marty when he started supplying the bases and how many he supplied.

No one will notice if you use one or the other on your build. It would take someone with a ton of knowledge to even notice the differences between the scope bases that each company makes. So, the Badger base is incorrect for an early A3, but if that's what you have on hand, go ahead and use it.
 
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