G&G M14 question
 

so I'm trying to install a scope mount on my m14, but the loading guide is in the way, and it's held on by a tiny screw, and I can't tell which kind it is. Anyone know? Tried using the smallest allen key I have, but still too big.

are you sure its an allen screw? If not find the smallest screw driver possible and litely try.

you have to use a metric allen key set. i bought one for my TM M14, and the smallest allen key on that set works for mr.

what size is it? my smallest on my metric set is too big

I gently tapped my out it was screwed in really really tight, so a few gental taps and it was out, left a slight scratch but nothing big, your scope mount will hide it anyway.