Originally Posted by
Hammer_Man
The full floating RAS handguards are amongst my favorites. I love the carbine version I installed on my M4. Now if somebody could convince KAC to re-release the carbine length URX *wink wink*.
Back to the topic at hand. I don't understand the fixation on pencil profile barrels, and ultra light weight handguards, especially on shorter carbines. Those weapons make compromises in their ability to handle heat IMO. For example I've used Geissele MK4, and MK14 handguards on previous builds, and in each case I found they radiated a lot of heat into my hands after not too many rounds. I imagine all of the other thin walled handguards everybody makes these days will perform the same. My current M4 as mentioned above, has a carbine length FF RAS on it, and it doesn't seem to heat up as quickly, and makes for more comfortable days at the range. I think if you're going to build one AR for all purposes (to include space zombie apocalypse), then durability/performance under prolonged firing schedules should be taken into account. Of course this is all subject to individual needs, I like my ARs built like tanks.
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