Extremely difficult to stake this end plate - Griffin Armament C2E Contour Connect End Plate

I would recommend this to those who dont care for staking their end plates. While it does look good, this thing is dang near impossible to stake. I tried and tried again with an S7 steel punch and only made a small dimpled but didnt manipulate the metal into the castle nut notch. I had to switch it out for a regualr end plate.