In answer to your question...if the metal work is matte finished it is most likely a M110...if stainless it is most likely a M116...I have both (the scopes are lousy).

They are very good to great shooting rifles. I would recommend pairing one with burris ballistic plex scope, a nikon BDC scope or a mil-dot scope in a 4-14X power.

The standard trigger is good...the accu-trigger is great.

BTW: I would also recommend changing the recoil pad...think Limbsaver, etc.