Just picked up a new upper in the 300 blackout. It goes nicely with the 5.56 that came with the rifle.
Spikes Tactical Compressor SBR-300 BLK / EOTech .300 Blackout Holo Sight
PNW Arms Signature Series .300 Blackout Designated Marksman Rifle. (SSDMR)
9.5" 300 Blackout Raven w/improved Match Chamber
The 300 Blackout round is incredibly popular. Here's why.
Building the perfect 300 blackout
overly decked out, but cool.
300 Blackout ready for supressor with threaded muzzle device.
NEA PDW stock on SBR ~ makes sense in 300 blackout
New Red 300 Blackout Trimming Jig for 2'' Chop Saw Auto Eject Scratchless Design #DemetersWorkshop