||This grip is exactly what I needed.
It fits my SIG Sauer 552 perfectly. I did not like how the 8.4 1600mAh brick battery (small) fit into the for-grip of the gun.
It was a pain to remove the top and lower part of the for-grip just to charge or swap battery's . This grip makes it a lot easier and the small 8.4 fits perfectly.
Not modifications are necessary . there is a small grove in the grip that allows the wires to exit out under the grip at the rail .
I did not want a PEQ box on my CQB gun and this is a perfect solution.
Easy to un/install
Looks good on the gun.
Rating: [5 of 5 Stars!]