Some people go home and research new headers for that engine they are rebuilding out in the garage. I pour over rifle specs and try to figure out how to get better as a shooter. So I needed to order some parts for a Lee Auto Disk Pro (go from chain return to spring return) and since you can't just order six bucks worth of parts from Midway I added a .052" rear sight for my AR and a "national match" front sight post (which I didn't measure with my dial caliper but seems like it is darn near half the width of a standard front sight post). I also ordered a bunch of yellow Magpul no tilt followers to upgrade my GI spec mags. I'm tired of my rounds getting hung up in a 30 rounder, and old Vietnam era 20 round mags are like gold, I haven't found any for sale or trade in a long time.
So now my "Frankenstein" AR is even more so, Colt HBAR upper with DPMS sights, Rock River Free float tube on a Rock River lower with a Geissele trigger. Slowly but surely this rifle is getting modified to exactly what I think it should be, and hopefully the tighter aiming points translates into tighter scores.
I'm going to try the stick on wheel weight under the hand guard trick as soon as I get get to a tire shop.