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  • outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,071
    Looking at a few complete uppers on gunbroker right now. Pricing them out then gonna look at parts and see if it’s cheaper to build or go for pre built one.


    Sent from my iPhone using Tapatalk
    You can get a better upper by building it yourself, if you do it right.

    (see my revised list)
     

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,071
    Yea just gotta do some research on barrels and if gas blocks matter with brand and all that. I’m just stuck between 10.5 or 12.5 for the 5.56


    Sent from my iPhone using Tapatalk
    Stay away from aluminum gas blocks and castle nuts. Use steel.
     

    Rondeezy

    Active Member
    Aug 25, 2022
    404
    College Park
    Stay away from aluminum gas blocks and castle nuts. Use steel.

    giphy.gif



    Sent from my iPhone using Tapatalk
     

    Slackdaddy

    My pronouns: Iva/Bigun
    Jan 1, 2019
    5,962
    Good to know I appreciate it. Picking up my lower on Friday so I’m trying to get the lower parts in to build the lower before I order my upper next week


    Sent from my iPhone using Tapatalk
    they had a great price on the Faxon hvy fluted barrel at the time.
     

    Rondeezy

    Active Member
    Aug 25, 2022
    404
    College Park
    Add these to your build tool list:


    Amazon product ASIN B0063HCP3E
    Amazon product ASIN B09VH9VJT6
    Amazon product ASIN B00WOJPWNK

    I see why u said get this tool. Just came across a yt video of a dude banging away on his barrel cause it was a tight fit


    Sent from my iPhone using Tapatalk
     

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,071
    I see why u said get this tool. Just came across a yt video of a dude banging away on his barrel cause it was a tight fit


    Sent from my iPhone using Tapatalk
    Some upper receivers are "thermal fit" which means the receiver needs to be slightly heated up before a barrel will fit into the receiver extension. You can't use that tool on thermal fit receivers. You run the risk of breaking the receiver.

    The reason for the tool is to square up the face of the receiver extension to the bore of the receiver and barrel extension. In doing so, accuracy is usually improved.
     

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,071
    Can I use Permatex Anti-Seize Lube for like my barrel nut or do I need to use grease?


    Sent from my iPhone using Tapatalk
    You want to use the Aeroshell grease. It will prevent galvanic corrosion from occuring between the steel barrel nut and aluminum receiver threads.
     

    Bountied

    Ultimate Member
    Apr 6, 2012
    7,151
    Pasadena

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,071
    Not a bad idea but I feel like you shouldn't have to do that.
    Well, if you're spending under $200 for a barrel, you probably aren't doing yourself much good(but you still are), but if you are spending upwards of $350-$450 on a barrel, it's foolish not to.
     

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