Need a little help!!!

wdebo

Sergeant
Full Member
Minuteman
Mar 31, 2009
458
8
45
Ohio
In the process of installing a new stock on my lwrc repr. I have lost the spring tensioner on my rear pin for my upper and lower connection. What am I looking for? I see in the pin that they have milled a flat spot with 2 holes to hold something in place. I have looked all over my floor and can not find anything!
A little help would be great.