
Originally Posted by
bruin
Nice choice on the Evo; I have yet to hear any complaints about heat dissipation (unlike DD MFR and Troys) and I doubt you'll really need the JP heatsink. Make sure you orient the barrel nut bushings correctly (see the pics) and alternate tightening the two screws. You should be able to crank them down to completely close the gap at the bottom, and your rail will be rock solid.
I was about to suggest: forget the CL/nitrided/custom barrel and just cut down a good 18" SS. Looks like you've reached the same conclusion... if you actually shoot it out, then replace it with a custom. By then you'll know if your 17" rifle gas is really worth it.
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