Gonna disagree Tab
There are times when a rifle is more better. Accuracy (buck spreads at at range darn quickley) and penetration. I'm not sure .556 is the ticket due to range issues, I would be happier with .762x39 for sub 100 yards, but the the point is, I would want the rifle. The issue of standardiztion is legit. Our local SO used to make officers buy their own guns, they had a wide menu to choose from. The new Sheriff killed that and mandated that the Department would provide a .40 SW in (brand x I forget) as he wantd deputies to be able to exchange mags. in a firefight. He did allow "backups' of whatever caliber, but you had to carry brand x. Requireing someone to pony up $1200, plus mags, optics etc for brand x carbines on a $35K salary seems excessive since they will be using it to protect the tax payers, who should be paying for it.
FQ13