Hmmm, that's funny I am holding one in my hand at this moment. I have the "factory box" it came in too. Unless it is a bootlegged copy and a faux...the box looks just like the one my P99 Tactical Knife came in...this seems like a job for Uncut to solve....There is no such Factory item, nor do we recommend it as it will damage your frame.
Well I will just hold onto mine just the same...never know when I may need it...Actually according to my friend Ken Lunde, a Miami PD tested the "toy" rail that Earl says it is and they experienced no problems (coming loose or damaging the frame). FWIW.