Well ok, it really didn't, but the timing was perfect. This was a build project that started here during last year's post-Sandy Hook liberal bed-wet-a-palooza that kicked everything gun-related into panic mode.
And yes, even I bit on the hook to an extent. In addition to hoovering up some extra ammo and magazines that I could still find at normal prices, I bought two AR lowers at prices that admittedly embarrass me a bit today. But I got them and started work on them as time and money allowed. The first is going to be an MK12 SPR when it's finished, and this one that just rolled off the build rack is a .300 Blackout short-barreled rifle with a 9" barrel and an Advanced Armaments Corp. 762-SDN suppressor that arrived at my dealer the day before I left for Indy. The upper also was slow to arrive, so I did not get to finish-assemble the rifle until I returned home, but I got to handle one just like it quite excessively at the AAC booth in Indy.
An Aimpoint T1 Micro red-dot optic will eventually top this rifle off, but for now...Mag-pul BUIS (Back Up Iron Sights) front and rear.
So how short is it? Well here it is with an M1 Carbine.
Now it needs a sling.