M7 bayonet compatibility?

[A square 10]

i know a few who do - some go full auto , but ive not gotten into all that fallderall yet , the taxes and paperwork leave me wanting less complication in my life and happy with what i own , i do have a bayonet [or two] for every rifle i own that accepts one , i agree thats one attention getting implement even when simply sitting there

[Smitty_MT]

Here is a comparison of how the M7 and M9 look on my BCM Mid 16.

[BEAR]

Only on the 16" barrel though. The 14.5" works perfect .........if a guy could have such an animal

Sportsman Guide was selling an M4 upper with a 14 inch barrel. The flash suppressor was pinned and soldered to the barrel giving it a legal 16 inches. No special permits and all legal by ATF.