As many who read my blog know, I like Spike's Tactical. Granted, they've given me a lot of stuff - but it's all looked at with a critical eye, and I don't often find things to complain about. With the SAR rails, however, I did. Spike's sent me two SAR rails, a 12" and a 9". They're very light - the 9" weighs under 10 ounces - and I like the titanium barrel nut that makes installation very easy. They have 4 QD sockets for sling swivels, and the width… Read More
Tag: rails
Heat Dissipation: Insulate or Circulate? Gas Tube or Op-Rod?
Standard disclaimer: I'm not a scientist and this was not a scientific test. Any conjecture on my part is purely an uneducated guess. As I've written before, POF-USA provided me with two of their upper receivers - one is of their standard P-415 design and the other is actually operated via a standard gas tube. It's called the RDIK. This gave me the opportunity to compare how each handled heat. That is, just how effective are all the design changes POF has made to the AR receiver, barrel nut, and… Read More