larue rail: heat sinking the chamber
I could not find the answer to my questions with searches.
http://www.laruetactical.com/larue-t...ndguard-lt15-9
Quote:
Additionally, our Free-float Rail system provides an excellent heat-sinking feature that pulls throat-damaging heat away from the chamber area. Another heat-sinking benefit is the elimination of pressure-spikes, which some feel is the cause of a large part of pre-mature bolt failures.
Does excessive heat on the chamber necessitate a heat sink? Does heat in this area necessitate larue rails for all ARs that aren't exclusively fun guns?
My feeling is that most quality rails are adequately ventilated enough to keep much of the upper (including the chamber) adqeuately cool for medium-hard use, and that the problem that larue is trying to solve only applies to m4 ribbed handguards.