JP Ent Thermal Dissipator

[Guill732]

Ran across these and thought they look interesting. Has anybody used them? What other barrels do they work on besides just JP Ent?

http://www.jprifles.com/1.4.5_hs.php

[unforgiven]

<munch>

[ipsick]

Ran across these and thought they look interesting. Has anybody used them? What other barrels do they work on besides just JP Ent?

http://www.jprifles.com/1.4.5_hs.php

I use them but the barrels on my .223 and .308 AR are both JP's.  They might work with other barrels but they would have to be the same dimension under the handguards as the JP barrels.  Either .650 or .750 diameter after the chamber and before the gas block.

[NoFail]

I have one on my JP .308 barrel. Easy install, lightweight, looks neat. Does barrel cool off significantly quicker in the air? I don't know.