Home CMMG AR-MPR AR-15 Build: Upper Part 3: Installing the free float handguard

AR-MPR AR-15 Build: Upper Part 3: Installing the free float handguard

1132
37

Please consider supporting Ultimate Reloader on Patreon:
——————————————-

Important: See disclaimer at end of video description.
——————————————-
Own the entire build on DVD!

Please join me on as I walk through a complete AR-15 adventure starting with a from-scratch AR-15 build. In this video, we’ll walk through the process of installing a free-float hand guard. The handguard we’re using here is a Midwest Industries 12″ free float quad rail unit. In the next video, we’ll assemble the bolt carrier group, and check headspace.
——————————————-
Ultimate Reloader LLC / gavintoobe Disclaimer:

You alone are responsible for the safety of yourself and your property.

Check local and state laws before undertaking any activity involving posessing, transporting, and shooting firearms. Check local and state laws before attempting to load ammunition or perform any modifications to a firearm. Always abide by the law. Always practice gun safety.

The content on this channel (including videos, ammunition reloading data, technical data, comments, and any other information contained within) is for demonstration purposes only.

Do not attempt any of the processes or procedures shown or described in this video or on this YouTube channel (gavintoobe).

Any reloading data supplied on this YouTube channel (gavintoobe) or in this video, including any comments from viewers and readers must be assumed to be in error.

Always consult at least three sources of manufacturer’s ammunition relaoding data before reloading your own ammunition.

Do not attempt to repair or modify any firearms based on information found on this YouTube channel or in this video.

Gunsmithing procedures should only be performed only by a licensed gunsmith.

Ultimate Reloader, LLC can not be held liable for any harm caused to any individual or any personal property related to to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.

By watching this video in whole or in part, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this YouTube channel (gavintoobe) or in this video.

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.

37 COMMENTS

  1. This is exactly what I am doing to my Mid- length and you have answered ALL the questions I had; including which way the washer for the flash hider goes back on =0)
    Thanks so much! Best video I have seen and all I needed was parts 2 and 3–PERFECT!

  2. OP, I have a similar assembly on mine, but I bought it fully assembled. Is the lock-tite something to expect on most complete uppers like this? The mnfctr locked down the rail assembly with a slight counter clockwise deviation (if you're looking downrange). It's not terribly off, but enough that I notice my MBUS front sight is off when sighting in. Would this be repairable by me? Can I overcome the lock tite if it is indeed on there? Thanks.

  3. I just put this same rail on my buddies AR and I noticed everything is coated in oil… I'm assuming any and all threads that come in contact with the supplied blue locktite should have the oil removed before the install process begins?

    I just wiped the threads down with a dry rag before installing. I haven't seen this mentioned in the instructions or any video on youtube.

    I'm looking for that spanner wrench you used in the video as well. I know YHM has their own wrench but it's 30$ 🙁

  4. I have been thinking of getting a MI free float rail for my next rifle. I hear that some quad rails are thicker than others and may be bigger than I am used to. Are the rail widths similar to the Knights Armament or are they wider?

Leave a Reply