B.S.
Bushmaster doesn't make a "M14" or anything like it. Nor do they make anything in 7.62. And no LE armorer would put a "laser" sight on a M14 or a 7.62 - holographic yes - lasers on rifles are for the wanna-be mall ninjas. (which you sound like)
I think that Bushmaster made a rifle similar to the AR-10 in 7.62 NATO, but I don’t know if they still make them. Laser sights are for mall ninjas.
See my post 36.
Bushmaster makes a 7.62 rifle, OK - so it’s a bolt action but it is a 7.62.
They also make some 6.8mm ARs.