This is a video we made showing how to assemble an AR15 9 inch barreled upper in 300 AAC Blackout.
Note to readers: Please click the share buttons above or below. Forward this article to your email lists. Crosspost on your blog site, social media, internet forums. etc.
just me or did that last round sound kinda loud compaired to the other sub sonic ones
Rage against the machine!!!!!!!!!!!
Just need to get some ammo.Its hard to find right now.
Great video.I already had a lower put together and all i need to Finnish my 300 blackout upper is a vise and the AR-15 block
your explanation is like going to elementary look easy ..great teacher !! do one from start to finish just got my lower anxious to start building it …im shopping for parts now …
I was very impressed with your build knowledge. I recently learned about the 300 AAC Blackout and you made building your own upper look easy. I wish you would do a complete AR build video(s) from the ground up.
Thanks for a really clear, informative, well-made video. I've only bought complete uppers till now – didn't realize how easy assembling an upper was till now.
Very cool video, and that is a nice build. I want one. I wish my state allowed sbr's.
The song is Freedom by RATM.
Oo sounds like my .22!! i want!
Man, that subsonic sounds like an old gas pump! Just a slight ring from the bolt….Fantastic!!! Looks like a nice shooter! Great job!
Very Professional Video, With Actual Technical Displayment of Theory With Mechanics Put To Actual Use And Real World Testing. Nice Job! 300 AAC ROX!
Hey rosspl23,
The jacket is a older TAD Gear Stealth Hoodie. Thanks for comments!
Awesome video. Very detailed and informative. Sweet rifle btw.
sigscout22lr,
Thank you for the kind words on the video! We are working on doing other videos soon and appreciate all of the compliments. Take Care!
great video! clear directions, quality resolution and best of all no b.s. just straight up good info. nice job!
Good info. Thanks!
Thank you for the complement JUKEBOXX1990!
excellent rifle and very informative video.
That is an actual AAC 9" barrel.
Wow! On the subsonic, the sound of the action is by FAR the most noticeable sound.
I wonder if there's an easy mod one could make to the DI AR to lock the bolt closed. You can also, of course, get a piston system that has a suppressor setting–doesn't somebody make 300 blackout piston uppers, though?
What song is played in the opening?
very well made video sir!i just built a 300 blackout minus the muzzle device!i`am thinking of keeping it supersonic for now until i decide whether i want to pay for an expensive,but well made aac blackout suppressor and and expensive government extortion tax!i`am thinking a battlecomp babc muzzle break for now!my build has a 16" barrel,so it`s maybe more of a sporting/hunting rifle versus a people hunting rifle.thanks again!
Does the 300 ammo need special magazines? or will the standard pmag work.
Would AAC update the 18t to the 51t? A buddy of mine owns a 7.62 SD in the 18t mount and i ordered one about a year back in the 51t and it seems quite a bit more secure on the muzzle.
what kind of gun came are you using?
haloora, the suppressor on the rifle is an older AAC 762SD 18T mount can.