When I got my Pre-Ban Bushy Carbine I opted for the 16" Barrel and the 5.5" flash Suppressor that slips over it. I gotta admit, at the time it was strictly the look thing. I Know I wanted the 16" HBAR (Way better Ballistics to a 11.5" barrel) (I have a preference to HBARS, always Have) and the slip over 5.5" flash Suppressor was a cool option.looking back 10 years later, now that I made it a flat top, got the Aimpoint, gonna get a RAS for it I still like the looks of it. and the cool think is that every body has a M-4 profile barrel, but I don't see a lot of the 5.5: flash Suppresors. so I still feel kinda cool!!!! and I would have to agree with drew5337. Guns are alot like cars and That was the only thing that steered me to the slip over flash suppressor. whether or not it does a better job of concealing the flash over an A-2 Compensator. have no Idea!!, But then again, I do pretty much most of my shooting in the daylight!!!!!!