Handgaurd and upper?

Discussion in 'AR-15 Discussion' started by SavageGlock, Jun 4, 2012.

  1. SavageGlock

    SavageGlock New Member

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    I had 2 questions on building an ar upper...

    First could I swap this basic style hand guard out for a free float handrail... Is the front fixed sight/gas block a permanent part of the gun?

    Second how hard is it to install the BCG and the Charging handle properly?
     
  2. southernfirepower

    southernfirepower New Member

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    Yes all you have to do is replace the barrel nut. Most free float products come with the replacement ( well at least all the ones I looked at)
    . No the gas block is not permanent, you just need a set of punches and a hammer to punch out the roll pins that hold it in place.
    . And as far as installing a bcg and ch go. There is no real installation, all your doing is putting them inside the upper. The go in and out really easy.
     

  3. SavageGlock

    SavageGlock New Member

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    Okay thanks!
    How hard is it to change that nut? Also how does the gas block work with a free float rail?
     
  4. southernfirepower

    southernfirepower New Member

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    Not hard, but if you don't have a the proper vice or the wrench for the upper receiver. you will need to take it to a shop to have it torqued on. And as far as gas blocks go, you can find a huge range of low profile gas block that you can install on your upper. And also just incase you need to see how it's done, you can find a ton of videos on YouTube
     
  5. AgentTikki

    AgentTikki New Member

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    If you plan it right you don't necessarily have to remose the fsb or the nut.

    You can cut down the fsb while still on the barrel, remove the top portion and leaving the lower gas block portion functional and intact.

    If you use ff handgaurds such as the Troy Alpha, Midwest Industries SS gen2, or Samson Evos then you won't even have to remove the barrel or the barrel nut as thses units will attach directly to the standard nut and forged upper receivers.
     
  6. AgentTikki

    AgentTikki New Member

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    Btw there are many other rails and handguards available that use the standard barrel nut. Those are just 3 lighweight and quality options.
     
  7. SSGN_Doc

    SSGN_Doc Well-Known Member

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    To change the barrel nutyou need a proper vice block for your action, a vice, a torque wrench and armorers wrench.

    Some handguards come with a propietary nut that requires their own special tools to install.

    Proper torque range on a barrel nut is 30 ft/lbs minimum, and not to exceed 80 ft/lbs.

    Agenti Tikki gave you good suggestions on rails that don't require any special barrel nut.
     
  8. buffalolake

    buffalolake New Member

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    Yankee Hill Machine also makes a quad rail handguard that would replace the stock handguard without special tools. I haven't got one yet, but I will be ordering one for my .50 cal Beowulf upper next week.
     
  9. Quentin

    Quentin New Member

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    I have to say if you're asking how hard it is to install the BCG and CH then it's probably wise to buy the upper receiver group already configured - with the rail and gas block installed. Also, I'd put a lot of thought into what your intended uses are and make proper decisions as far as what goes into that upper.

    Why not let us know what you want out of the AR and no doubt there'll be lots of advice on configurations. To get the "building" part out of your system, just build up a stripped lower, that's what a lot of us do.
     
  10. SavageGlock

    SavageGlock New Member

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    Thanks for all the info...
    Quinten that's what I'm doing I just received my LPK and Buffer tube and stalk I've had my Spikes punisher lower for a month or so.

    I have watched a video of the BCG and charging handle and it didn't look hard but I was sure if I needed any special tools that's all. I was simply asking because I know a lot of you on here have the experience of installing things.
     
  11. SavageGlock

    SavageGlock New Member

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    Oh and I was asking about the rail and gas block for future purposes, I wasn't sure if it was a permanent thing. I had searched the web and couldn't find any info about how to change the gas block.
     
  12. Quentin

    Quentin New Member

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    Well again, I'd put a lot of thought into it now and get what you want already installed. Myself, I'm happy with the fixed FSB and MOE handguards, that'll do at least 90% of what other configurations do.
     
  13. southernfirepower

    southernfirepower New Member

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    I got a yhm Rail an love it! Just saying
     
  14. SavageGlock

    SavageGlock New Member

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    Does anyone know how good of quality the reddot that comes with that PSA upper is?
     
  15. SavageGlock

    SavageGlock New Member

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    Just finished installing my PSA LPK this afternoon... Waiting to get a stock was gonna go with PSA adjustable any other suggestions?
     

    Attached Files:

  16. SSGN_Doc

    SSGN_Doc Well-Known Member

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    My favorite collapsible stocks are the Magpul CTR and the Vltor Modstock.

    If gong with a fixed stock, there is nothing really wrong with the standard A2 unless you want the shorter length of pull from the A1. Also ACE Skeleton stocks are a good option.
     
  17. southernfirepower

    southernfirepower New Member

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    That's a good job with that lower. I just finished my entire project yesterday. Trust me when I tell you don't rush it. (I'm not saying your rushing, just something to keep in mind). Either way man be sure to keep us updated with pics of progress.