Many of you guys have been following along with my new 9mm AR build and noticed that their 9mm barrels were out of stock for a bit. Good news for those looking to start their 9mm build, they are officially fully restocked. They currently have 3.5″, 5.5″, 7.5″, 10.5″, 14.5″ and 16″ barrels ready to go. Most guys go for the shorter barrels because “Its a pistol caliber” but I’ve seen 100 yard groupings on paper with a 16″ 9mm QC10 barrel that were 1MOA which is pretty impressive. If you’re looking to start that next 9mm build, head on over and snag a barrel or two from QC10.