maybe
I know for a brief period of time, the 760 carbine was listed as the 'duty rifle" for the Nat. Park service, in cal. .308. Late 70's. I never saw one.
I was also at FLETC in the 80's when the Border Patrol shot 760 ( and plastic ammo).
The other day I ran into a chap, retired FBI, who claimed they had 760's for a while.
But these were all basically sporting rifles. Glossy stocks, 5 rd mags, etc.
Rems a it late with a business like, LE purposed pump rifle, but it's still a good idea.