How to Assemble AR-9 Upper Receiver Build

Thanks for watching. This video demonstrates how to build an AR-9 upper- including assembling the barrel, barrel nut, handguard, and muzzle device. It also includes a description of the parts I used.

[@RobinMartin-sr2pk]

One of the BETTER assembly videos for beginners.

[@douglasrjohnson1]

Great tutorial! 90% of these "build" videos are just "look at my new gun" with no useful information. I was building my own on EPC 9 upper & lower and you helped me through a couple of key steps. Well done!

[@Go2Sleep87]

That’s the main difference between men & women, we buy parts/guns even when we don’t have the money & women can stay patient & wait until they get a good deal 😆. Great build, it looks good.

[@victoryera2116]

You’re not lying my friend 🤣

[@Greg2112]

Guilty as charged...

[@justindawn3428]

Facts

[@josh82685]

I thoroughly enjoyed a female putting a gun together. Who also knows a lot more than me! This actually gave me a little knowledge as I’m building my first ar in general. But specifically a ar9. So thank you for the video.

[@tbaum101]

Was actually more informative than almost every other video on this topic I’ve watched.

[@adamcoker5604]

You must live under rock.

[@rwwehrwein1427]

Very nice demo. Your verbal skills are exemplary. They allowed you to provide tons on detail without subjecting the viewer to a verbose forty minute snoozer. Beautiful hands too.

[@williamcollins3565]

A very good and useful video. I'm on my sixth build, using a standard lower that I intend to put interchangeable 9mm and .223 side-charging uppers on. Not many videos show how to put a barrel and a compensator on with a torque wrench, compression nut and shims.Your video had the most useful info with zero macho bullshit in it. My congratulations.

[@losmaestros2752]

That Zoom in at the end synced with the lyric of the song! LoL! I'm dying on this end. Thanks for the video!

[@killerskincanoe]

This

[@murphystreeter]

Cool!!! Just got my AR 45 last night wondering where the hell my barrel nut is located......now I know!!! My first AR. Much lighter than my L1A1 and my Frenchy. Yes....I am a big 308 fan.

[@joejeans7913]

I just got my Handguard, barrel and upper in today. Ive built many ar15 lowers but always just bought the complete upper and off I go. My first upper to piece together. Thanks for the demo. Wife asked how I learned to do it I said "I had a pretty lady show me how"! that didn't go over so well. then I added on "KZbin " so here we are watching it a second time. LOL

[@1984nostawivel]

that looks more like a 5.5 inch barrel rather then a 4 inch. awesome build and video!

[@IVI0NSTERxx8]

9mm AR barrels are measured differently than regular AR barrels. They're measured as overall length whereas regular AR barrels are measured from the shoulder that mates and index's to the upper.

[@Greg2112]

5.5" is the shortest 9mm barrel BA offers

[@RideForLifeCR250R]

Yeah.. I'll believe the HG is 4", that bbl is longer seeing them side by side. I'm looking to use a 9ish length bbl with BCM MCMR8 HG.. should allow muzzle threads to fall just outside the handguard.. I hope if I done homework correctly 😉

[@jasonmarkou9974]

Not saying you did it wrong, making an alternative suggestion... when putting the barrel nut on, why not set the torque to 30-35, THEN tighten further to get proper alignment (timing). Seems more practical than torquing to 50 adding shims.

[@joeross952]

Absolutely fantastic video. I hope your husband appreciates you, you are every man’s dream girl.

[@Marzen216]

This was really helpful to give me an idea of what I need to do for my first build. What about using barrel nut grease to prevent binding due to dissimilar metals?

[@zerohero6602]

I think you mean anti seize lubricant? I use loctite C5A from brownells also aeroshell grease is very popluar. Its used when you are marrying two different types of metals such as aluminum and steel.

[@coryrudd9509]

Outstanding video, I was looking for those torque specs, you gave me what I needed.

[@keithromig6799]

Thanx for the video. You answered several questions I had by showing the little things that make a difference to my build. Now I'm going to finish my build.

[@adonian]

That looks good. I’m gonna make mine in FDE. I like the “smooth side” look I’m gonna do that.

[@codyjenn8785]

This is very helpful for my panther arms AR 9 build kit.

[@thomasusowski2155]

Hey great video! You did a really good job showing, and explaining everything!

[@nickmat994]

Right on. Keep up the great work!

[@tonyg8471]

Pretty lady putting together a PCC. What's not to like? I favor Colt mag PCC receivers, but I do realize it's a Glock world. You failed to ramble on incessantly as many do with their videos. Refreshing. Only thing I would change is a switch of the outro music to a live version of Elan from Nightwish w/Floor Jansen. 😉🤘

[@cavewomansarah6142]

Thanks! I appreciate the feedback

[@bernardomontell873]

Pretty awesome tutorial. I think I am going to make one of this, thank you.

[@dPYTHONb]

Awesome build !!

[@moonchung101]

Where have you been? Dream girl, knows how to build ar9 and teaches me. I built 556 and 308 but not a 9. I know there’s no gas tube, just wanted to know if there’s anything else I need to know. I like to use a jam nut instead of a crush washer. Hell ya girl!

[@marcelorodriguez7524]

Great Video

[@davidgreener423]

Great looking gun good job!

[@ARP_king5.56]

Nice video thanks for all the info , first time building a upper , i build my spike tactical lower all assembled by me but bought the upper complete , now im doing the megara 4" AR9 🤝🏽 learned alot from this video definitely earned the sub ✍🏽 cant wait to put mine together, is the CH same as the AR or it have to be special for 9mm BCG ?

[@goldcoasttime]

Beautiful hands

[@Charsept]

This made me realize I don't have the tools to do this at home. I guess I'll be supporting my local gunsmith again 😅

[@jpay37]

Excellent video, thank you!

[@Matt-vn1ws]

Thank you. This will really help me.

[@unitcharles689]

Nice rig. I enjoyed the video.

[@WekBenHelix]

Helpful! Thanks for this.

[@armedarchangel9567]

Nice video of your build, but you might want to look into getting the 7inch handguard for that barrel.

[@versoarmamentcompany]

Fantastic video!

[@jrdaparker]

Awesome video!! Lots of details not mentioned in other videos, which is awesome!!!!! Keep making videos!!!

[@therealhughleys4872]

Great Video, can you supply a link so I can get the wrench and vice block please?

[@cavewomansarah6142]

www.primaryarms.com/wheeler-delta-series-ar-15-upper-vise-block-clamp www.primaryarms.com/wheeler-delta-ar-combo-tool

[@PublicJohn]

"just watch a girl tighten up a barrel nut"......Yeah baby. But I am just starting my first ever AR build. I am in the buying parts phase. I decided on 30 Luger of all things. Mostly that the ammo is cheaper than 9mm and can be found. I can switch to 9mm when and if things ever calm down. Glad I found this video

[@AdventuresofAwesomeJoe]

Very informative video, thank you

[@_VaIiant]

Your amazing. Thanks for the vid

[@cavewomansarah6142]

Thank you!!

[@TheTeeWorldsfreak]

really nice video, keep up the good work!

[@ElectricLarry__]

This is so cute and I love "gals with guns"🤩 You rock C!!!! 👍😉🇺🇸

[@ronaldprovencher7570]

So True ...Parts from all over ..still waiting on parts .. I have 2 Foxtrots Mike FM9 's

[@skydivingcomrade1648]

Looks amazing

[@odevious8081]

Where do you get the shims? Btw awesome video its my first time building an upper

[@christianavelar8862]

What tools do you need to fully build one an ar9? I ordered a parts kit and stripped lower receiver but don’t know what tools I will need

[@You-Need-Therapy]

Can you post a link of the vise block and the barrel nut wrench that you used?

[@rifleshooterchannel208]

Both look like Wheeler brand.

[@secondlibertygunclub924]

Good stuff!

[@bartbrown9860]

Guys, always grease your barrel before inserting it. I use anti-seize BTW.

[@tiarabaranes]

Is is possible to put the links in the description for parts?

[@livefree5997]

No.

[@sushimann7]

Omg im still waiting on my spikes tactical upper reciever and my build will be ready

[@lambr0063]

great video thanks

[@CharlieJulietSierra]

Nice video!!!

[@livefree5997]

Sweet build. 👍🇱🇷

[@entropicgirl8648]

I just built an double Form1 build one for the AR300AAC SBR the other for my ti Suppressor.

[@cory5525]

Great video and useful information. How does she run?

[@cypheir]

Was hard to see in your video if you did (9:33)... but don't forget to add some molybdenum disulfide grease to the threads of the receiver, and some copper anti seize on the outside of the barrel extension.

[@jasonarringotn2501]

Awesome video, what kind of buffer did you use?

[@TheRwhitley57]

We need more

[@kobudo]

Hi there, what vise block are you using here? I’m going to be building my first upper soon(ish), and the Aero upper looks a lot like that one.

[@PinoyGrayMatter]

nice video... i'd like to know what brand and where you got the handguard... and hoping to see the range video soon... God bless.

[@FormerMPSGT]

Blow Back Action: Gee same meaning to guys! Nice Build! Can I get the Fore grip/Barrel Nut and Barrel info for order please! Thanks!

[@5jjt]

Sweet build! Thanks for posting this portion of the build. How much did it all cost in the end?

[@brandensoutdoorb-channel8084]

I used a reaction rod yesterday for my build

[@cnstn339]

Great video. Thanks. Where did you get those barrel nut shims? . . .

[@jonsebastian1366]

SWEET!

[@christophermcdonald7667]

Women putting out gun content is a wave

[@calicojack556]

Well done!

[@fmagalhaes1521]

@CavewomanSarah… Where can one buy one of those armorer’s wrenches? Love the video by the way.

[@JonBallRealEstate]

THANK YOU so much

[@xavirey-ie9qc]

Can you please show a video of how it ran. I was wondering how the ejection works with a normal 223/556 upper receiver. I have a AR9 that im trying to build but I'm not sure if i should buy a dedicated 9mm upper with a wider ejection port of if my regular 223/556 upper will work at ejecting the stubby 9mm round..

[@mp-xt2rg]

Just put some oil on the threads and torque the nut in one go. Even critical situations like head gasket clamping that kind of process isn't used. Honestly on a gun you could just guess, I wouldn't even bother with a torque wrench. The ultimate strength doesn't change and the preload isn't that important since nothing is being sealed.

[@Beatnuts]

Good stuff

[@patrickbrown7398]

Thank you!

[@jeffcheek5516]

What brand is the hand guard. Good video

[@JesseePDX]

good stuff!

[@209ers]

Hello, Im looking to build an AR9 also. Are the Ar15 lower parts compatible with the AR9 lower? What's different and what's interchangeable?

[@gerardbeck457]

What kind of upper vise block is that?

[@bradcampbell7253]

Oil your takedown pins, they will move easier.

[@FirearmOutfitters]

What armorers wrench & vice block are those?

[@18wheeler77]

Does the muzzle device really need to be that tight?

[@ronaldprovencher7570]

What spring and buffer (weight) are you using ?

[@FloridaStateDeputy]

Thanks

[@ProactiveDefenseLLC]

Did that upper allow the bolt to hold open?? I noticed other videos with spikes lower they had to modify the upper.

[@ronaldprovencher7570]

Barrel Nut 35 - 40 foot pounds

[@javierdiaz7952]

I’m interested in building my first AR-15 but can’t find any videos on how? Do you have any helpful sources?

[@calicojack556]

Can I adopt you as my daughter ;) ? Great video!

[@ArmedChicano]

Dope !

[@cesaralvarez3298]

Hello, so how did it run? I got a 9mm 5.5 ballistic advantage barrel and people have been saying it has problems feeding. Still haven’t shot mine just wondering how it worked out for u. Thanks

[@FUBARguy107]

Dang it! I have a different hand guard and the part that attaches to the barrel nut is completely different and I cannot find any instructions on how to do mine.

[@Trad6166]

Can you use a AR barrel but and forend on a AR9?

[@Zevikingbmx]

Okay but I'm about to build one are there specific charging handles I need to use or will a standard 5.56 one work

[@user-rq2yk3rr6v]

Shims 👍👍

[@nebaker4]

What bolt did you use?

[@kiingzay731]

1:45 😢 hurts

[@ryananderson4315]

Do you have a link to the vice block?

[@williamsandow3530]

is it neccessary that the barrel on a 9mm has to be timed? i was advised that this is only needed to be timed only on a 556. can someone clear that info for me?

[@donsmith9797]

If there is an additional cut in the barrel ( feed ramp) then it will be pinned and that pin will go into the slot on the upper, if there are no additional cuts in the barrel ( no feed ramp) then it won't matter. I generally just put the engraving on these barrels up. Hope this helps you out.

[@RideForLifeCR250R]

Terminology helps convey and you sound more like you know your stuff. Those "little screws" are handguard pinch bolts and no grease (aeroshell 64) on bbl ext.. just bbl nut threads. It's there to prevent galling and allow bbl nut to tighten smooth and consistently. "Centering" bbl nut not required/doesn't matter.

[@mrshowtime7465]

please add the parts list used and links

[@cavewomansarah6142]

Magpul grip Glock 21 round mag Luth AR LPK with no trigger or grip Foxtrot mike 9mm weight buffer Foxtrot Mike 9mm bolt Glock style Standard mil spec carbine spring sBA3 pistol stabilizing brace Spikes Lower receiver 9mm LRBHO Spikes upper receiver AR-15 slick side (multi-cal) Strike industries charging handle Standard mil spec trigger Anderson Ballistic Advantage 9mm 5” barrel

[@whangsu]

@@cavewomansarah6142 Can you share the manufacturer of the Barrel Nut and Rail/Handguard? Also, did you put any anti-seize compound on the barrel nut threads?

[@amm0j00.o7]

Wow!! Are you married? If so he a vary lucky man!!! Sorry but you just don’t find a woman like you all that often. Great job on you rig!

[@davidgreener423]

I just sub

[@cavewomansarah6142]

Thank you 😊💕