Originally Posted by thomast
It does. Put up a picture of your issue? Is it the roll pin that is lower left below the takedown lever? That is a roll pin and should not move. Maybe they used one too small? Send it back.
BTW how do replace the hiviz insert
Yes it is the pen located located below the take down lever.
The hiviz optic insert actually snaps into place. Hiviz makes a tool to install and remove the insert but I never received one. Hiviz just send me two green inserts, so I used the double lock pen on a handcuff key to push it in. You really don't need the Hiviz tool to replace it, just use anything that's the same diameter as the insert and push it in until he feel it snap into place.