buffer 6.5 grendel

[Former Cav]

If I buy an upper for my .223 AR 15 that is 6.5 Grendel, will I have to change the buffer and spring? If so, to what.
this would be with a 20 inch barrel.
like this one
https://palmettostatearmory.com/catalog/product/view/id/33781/s/psa-20-rifle-length-6-5-grendel-1-8-stainless-steel-15-m-lok-upper-with-bcg-ch/

[JOHN COOK]

[QUOTE][https://www.youtube.com/watch?v=s8k1W1UakvU/QUOTE]

Former Cav, if you are dealing with Palmetto Armory they would have the answer to your question. Give them a call or Email. If not they will still give you the answer.

john in SC