Re: Savage 110BA Accessory Rail Purpose
To hang all sorts of silly shit off of...
I may consider buying one some day but the first thing I will do is ditch that gearqueeralicious monstrosity and get a Farrel base.
eta: To actually answer your question instead of just rant the side rail is to mount an IR designator etc but honestly 99.9% of those with an IR designator etc are using an AI, DTA, TRG etc (lets not revisit the AI vs Savage pissing match please).