adapted a5 flatline
bt raised sight rail
either this piece or a regular 200 round by pmi
Rraises up sights
I guess its kind of expensive
hopper interferance, with a sight on
Overall a nice product, while I don't know if it was worth the $30, still raised sights, which is what I needed. I had hopper interferance at first so I had to get a hopper with a long neck. It is also a little small for using as a handle, at least for my hands.
I would suggest buying this if you need to raise your sights, that probley about it though. If your trying to make you gun look milsim you should look into the M4 handle one that BT makes .