So I had the chance earlier this year to buy a registered SWD M15 lightning link and in the everlasting wait while the ATF hires a trains a new inspector to eventually affix a stamp to my document so I may take possession of said tab of sheet metal. Anyhow, I was able to find an SP1 BCG and have that installed in one of the new Colt retro M16-A2s which will be the host. I purchased the link reinforcer already but since I've never fired one, was curious is anybody had direct experience and any cautions so I don't jack this little precious bit of metal up by doing something stupid. Not many YouTube videos about these things but have looked there... Any advice?