How to Install an AR-15 Barrel Presented by Larry Potterfield of MidwayUSA

How to Install an AR-15 Barrel Presented by Larry Potterfield of MidwayUSA

Watch as Larry Potterfield, Founder and CEO of MidwayUSA, presents “Barrel Installation” in the How to Series, Gunsmithing the AR-15.

For this and other MidwayUSA videos visit the MidwayUSA Video Library:
https://www.midwayusa.com/video-library

50 Comments

  1. Jelly Man on December 24, 2022 at 12:35 am

    4:46 Cool ring!



  2. fordfreak2007 on December 24, 2022 at 12:38 am

    You should specify inch or foot pounds.



  3. ETHRON1 on December 24, 2022 at 12:39 am

    Recently watched a Brownells video where I commented on his barrel install about "Setting" the threads or mating as you put it…Caleb said it was a myth…but I was taught to do it by people who design Firearms so I agree with Larry. Midway is my top online store.



  4. jimmah34 on December 24, 2022 at 12:40 am

    is the torque value in inch-lbs or foot-lbs?



  5. Mitch on December 24, 2022 at 12:40 am

    30-80 lbs? Bro that’s a big range…



  6. Jeff Burnham on December 24, 2022 at 12:42 am

    We never had the services of a base armory at our disposal when I was attached to a MARDET aboard a CV. One of our Marines was selected to attend the armory school, and that person did all of the maintenance we needed for our M16A2’s and other weapons. As they rotated out after their 2yr duty assignment, another Marine would attend the school and take over responsibilities. For the really big issues, we just shipped the entire weapon back to Quantico for work or had it replaced.



  7. Bang Hoang on December 24, 2022 at 12:42 am

    Why do you have to tighten and then open it a few times? Thank you



  8. Mikey P on December 24, 2022 at 12:43 am

    Great video!



  9. Mike from Clark County on December 24, 2022 at 12:47 am

    What is not considered is the fact you are exceeding the torque you want by using the barrel nutwrench. Example, if your torque wrench measures 18" from the middle of the handle to the center of the ratchet head and the tool measures 3" from the drive hole to the center of the barrel nut , you increase the effect of the torque wrench. Cross multiply and divide to get the correct setting for a desired torque. Using the torque wrench I described, at a setting of 60 foot pounds would actually be 70 foot pounds on the nut.



  10. Coppertop V on December 24, 2022 at 12:48 am

    I Hadn’t "Torqued" It, and it seems to have worked fine, I just tightened it as far as I could. Over 1,000 rounds and everything still works.



  11. Omihurst on December 24, 2022 at 12:49 am

    That’s probably he’s way of installing the barrels but not the best way, viewers keep watching for more tutorials and you guys will find out why, he skip some good tips that will definitely make the difference between mediocre installation and OCD to perfect installation the one perfect and done way.



  12. MrSatchelpack on December 24, 2022 at 12:53 am

    Instead of using a gas tube alignment gauge, you could also use…a gas tube.



  13. PeteS528 on December 24, 2022 at 12:57 am

    Amazing how many people in the comments don’t realize Loctite is a company that makes more than thread locking materials. He explicitly says anti-seize compound.



  14. deathskrieg on December 24, 2022 at 1:01 am

    was that 30-80 inch pounds or foot pounds?



  15. Jason Hagensen on December 24, 2022 at 1:01 am

    My barrel didn’t come with a barrel nut. Lame



  16. MrErichonda30 on December 24, 2022 at 1:03 am

    Propane and Propane accessories



  17. Steve Hardeman on December 24, 2022 at 1:04 am

    This guy needs the Magpul tool ,btw I hate a delta ring !



  18. G. Simard on December 24, 2022 at 1:04 am

    Bring back Larry Porterfield !



  19. geebeaux on December 24, 2022 at 1:06 am

    You skipped the frustrating part of a timed barrel nut.



  20. M Hoffman on December 24, 2022 at 1:06 am

    Wrench should be at a 90 Degree angle from the socket to get proper torque



  21. Tom Dreu on December 24, 2022 at 1:07 am

    The porno music is awesome



  22. Jersey LTD on December 24, 2022 at 1:08 am

    I have a hard time doing this on the aero precision enhanced handgaurd barrel nut



  23. Philip George on December 24, 2022 at 1:09 am

    All that just to end up with a receiver with a forward assist.



  24. James Stewart on December 24, 2022 at 1:12 am

    You should have that torque wrench at 90 degrees to the barrel nut tool or it gives you the wrong torque.



  25. Mic Well on December 24, 2022 at 1:12 am

    A 5 min vid is valid. A 10 min vid is a rant. A 20 min vid is BS….thanks for keeping it to the point !!!



  26. Qingeaton on December 24, 2022 at 1:12 am

    I don’t even own an ar pattern rifle but I still like knowing how things work.



  27. K Rog on December 24, 2022 at 1:17 am

    His torque will be off when the attatchment is not 90 degrees. Bad…



  28. NYG5 on December 24, 2022 at 1:17 am

    Pretty amazing how they went from 1898 rifles and their fine milling and fitting for every little thing to something joe blow can put together with a vise, wrench and grease in only 60 years



  29. Clorox lavender scent on December 24, 2022 at 1:19 am

    How do I install an AK barrel Larry?



  30. nikolasbbq on December 24, 2022 at 1:19 am

    Love the porno music. Excellent touch.



  31. Ho Patrol on December 24, 2022 at 1:20 am

    I’m discouraged. I’ll never learn AR 15s. I’m just gonna continue to suck at life



  32. Anthony Logan on December 24, 2022 at 1:21 am

    Larry was making sweet love to the barrel nut



  33. nofortunatesonII on December 24, 2022 at 1:22 am

    Sloppy barrel to receiver fit on your unit?



  34. Pat Haskell on December 24, 2022 at 1:22 am

    Isn’t the actual torque on the retaining nut going to be greater than the setting on the wrench because of the increased lever arm from the adapter?



  35. GR45 on December 24, 2022 at 1:23 am

    is there an advantage to backing it off 3 times? I usually just back it off once, then torque it to 30, set it to 75 and go to the next hole. if it didnt click, call it good and start on gas block and tube.



  36. Timothy Bonds on December 24, 2022 at 1:23 am

    So glad I’m using a Geissele rail. So much easier.



  37. Chris Chiampo on December 24, 2022 at 1:23 am

    So What Was Your Final Torque Value For The Barrel Nut After Tightening and Loosening 3 Times to 30 Ft Lbs Larry 😀 30-80 Ft Lbs Is Quite a Lot Of Margin For a Torque Value and When You Add Lubricants It Also Increases The Torque



  38. RAMTEK on December 24, 2022 at 1:25 am

    It is possible that you cannot get proper alignment of a notch with the port in the receiver and still be within the torque spec. In that case you will need a barrel nut shim. I don’t know why this is omitted from the video.



  39. StephenAnthonyJr on December 24, 2022 at 1:25 am

    Don’t you have to headspace the barrel



  40. Paul Swan on December 24, 2022 at 1:26 am

    You’re mom goes to college!



  41. TacRaheenNC on December 24, 2022 at 1:29 am

    What happen if you use two crush washer??



  42. Edje Collins on December 24, 2022 at 1:29 am

    Do I need a roll pin starter punch?



  43. Lew James on December 24, 2022 at 1:30 am

    Love these videos but I do find the silly background music a bit distracting. Ever think about just doing a video without the wailing guitars and drum solos in the background? Might make it easier for somebody to concentrate…



  44. The_MonkeyPox _Commander on December 24, 2022 at 1:31 am

    30 to 80lbs??? This essentially means it doesn’t matter. I’m a mechanic and slowly learning ARs. 30 to 80 is like the difference between an intake manifold and the heads or even the main bearings!



  45. Quiet Intrusion on December 24, 2022 at 1:32 am

    Great video!



  46. Kinzie Conrad on December 24, 2022 at 1:32 am

    And here is the real kicker regardless of how tight you make the barrel nut. Once the gas’s block and tube is in place the nut is keyed and cannot be turned because of the tube!



  47. M W on December 24, 2022 at 1:32 am

    30-80 pounds??? That is HUGE window to pick from…



  48. Dont ask on December 24, 2022 at 1:33 am

    Loosening the barrel nut is one thing, but to unscrew it is pointless



  49. John Beck on December 24, 2022 at 1:33 am

    In/lb or ft/lb?



  50. Dan on December 24, 2022 at 1:34 am

    Great, you got to spend 500 bucks for the tools that you can do while watching tv.