I modified the large flared out cap and the grip it's self just slightly. I removed one of the rail tangs as well.
Pic shows where I removed the rail tang.
Small base on and shows how little of the actual grip was cut down.
I was going to make a monopod out of it that is why the large base has been cut down and has a hole tapped 1/2"X13. All work was done in a milling machine and on a lathe it's not a Dremel hac job