Been actively trying to find an M15 SPR II, and having zero luck. Being told two-four months to get one, if at all. Dealing with Quantico Arms right now.

Is it always this hard to find the National Match armalites????

Quantico Arms is one of the biggest Armalite dealers in the country IIRC.

Your only, better, source would be Armalite -- directly.

Unless you're dying to have an Armalite you probably ought to consider a RRA ( better float tube and trigger ).  Looks like ADCO has the NM lower in stock for $315 and RB Precision lists the A4 upper for $525 ( you'd have to check availability ).  You know the drill, get an FFL to take care of the lower and order the upper yourself.  If you're thinking about shooting the rifle in High Power competition, I'd really suggest that you look at a pinned A2 WOA upper for a few dollars more as the tighter tolerances on those sights really are worth the extra money in the long run...