Question Reqarding The Bren Light Machine Gun

[Today&Tomorrow]

I have a question regarding the BREN light machine gun. We are going to be working with a military group that still uses these light machine guns and we are trying to find BFAs for these weapons. We have tried everything we can think of trying to see if there is even such a thing as a BFA for these weapons. I could really use some help on this matter and I was thinking with all the experience and know how on this website someone might be able to help me with this problem. I appreciate any help with this matter.. thank you in advance...