I’m piecing an AR together to shoot long range. I plan on using a heavy barrel about 22” or 24” long with an Optic. So far my research has led me to two handguards; the BCM ALPHA 15”, and the SEEKINS SP3r 15”. Gun will be shot primarily prone. I’m also putting gas block clearance inside the tube as an important factor. It seems the BCM has the largest gas block clearance I have found yet. Anyone else have a favorite handguard that maybe I haven’t checked out yet? I’m not around a lot of gas guns so I’m not sure what are the goto hand guards for an SPR.