18" ARs Making a Comeback - Page 2

awm14hp · #21 11-02-2009, 08:38 PM

wow those are great looking rigs

edwin907 · #22 11-03-2009, 02:25 PM

I was originally going to build the Douglas 18" with a DD 12 M4 rail like I used on my 16" Krieger Recon.
But I got such a good deal on the DD M4 13.5 I couldn't pass it up. It's weight is among the lowest of the longer rails available, less, I think, than the LT 12 rail.

rljatl · #23 11-05-2009, 07:22 PM

Quote:

Originally Posted by M&P45

My next upper build will be either an 18" or 20" SPRish build. One thing that I always wonder about when looking at these pictures is why all of the extended rails? I'm leaning towards an 18" middy with a 10" rail. What would I gain, if anything, by going with a longer rail?

Two more reasons that haven't been mentioned:

1. Protect yourself from a hot barrel.
2. For accuracy reasons, it's better to rest a FF rail on an object than it is to rest the barrel itself. Resting the barrel may cause shifts in point of impact.