MMMM secsi Havoc.
I've used the JP handguards and found them too fat. I wear a size large/xlarge glove.
The Samson Evolution and Rainier Arms are about the same in thickness as the Troy Alpha Vtac that I had, very comfortable.
The Daniel Defense Lite quad rail is suprisingly light, for a quadrail, and very comfortable with ladder rails sections.
Mi SS gen2 is narrower still, and very very comfortable. The best I've felt so far.
ONe thing to keep in mind tho, the thinner and lighter you go, the faster it heats up, but conversely the faster it cools down.
as for the
Geissele SMR series
I haven't had the pleasure yet....
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul