Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

AR pistol build

Discussion in 'Handguns: Autoloaders' started by Balliet, Jul 6, 2014.

Thread Status:
Not open for further replies.
  1. Balliet

    Balliet Member

    Joined:
    Nov 29, 2013
    Messages:
    59
    Location:
    the sticks
    im building a pistol. i have the stripped 'virgin' lower, stripped upper, sig brace, lpg with pistol grip, and phase 5 pbt. i would really like input on upg components, and barrel suggestions. does anyone make a bull barrel (for weight out front)?

    thanks in advance
    Balliet
     
  2. Balliet

    Balliet Member

    Joined:
    Nov 29, 2013
    Messages:
    59
    Location:
    the sticks
    oh yeah, its for home defense. and its gonna be in 5.56.
     
  3. dogmush

    dogmush Member

    Joined:
    May 7, 2008
    Messages:
    1,135
    Location:
    Tampa
    I haven't seen a bull barrel, but it's the AR world, so I'm sure someone makes it. I also haven't needed any extra weight on my 10.5" pistol.

    Are you buying it built or building?

    Buying complete: BCM, PSA. Both solid, both with good reps. PSA will be a little cheaper, BCM will have better components. Both will work.

    Building: that's a deeper question. I yet a YHM slimline handguard, mils per upper I already had, sourced the small stuff (forward assist, delta ring) from midway, and the barrel and BCG from MAS defense. I had no issues with my stuff. But the sky is the limit with AR parts.

    I would recommend carbine gas system, and no less then 10" barrel. Also I know you have the receiver extension, but KAK makes one for the sig brace that let's you run a carbine buffer and spring. Helps with reliability.
     
    Last edited: Jul 7, 2014
  4. jigglyjames29

    jigglyjames29 Member

    Joined:
    Jan 9, 2006
    Messages:
    167
    I'd go BCM KMR with 11.5" barrel

    If you want something functional with pretty much guaranteed quality, but a preassembled upper from BCM or DD.

    If you just want a project gun, build it yourself.

    You won't save much, if any, money by building it yourself with parts of similar quality.
     
  5. justice06rr

    justice06rr Member

    Joined:
    Oct 7, 2011
    Messages:
    1,597
    Location:
    Florida
    For the barrel, I highly suggest at minimum a 10.5" with the carbine gas port. This will ensure the best cycling while still having a short profile. There are plenty of options on barrels out there, so pick a length that suits your needs. You can go shorter of course, but you may run into some cycling issues depending on the config.

    Buy a good BCG from Rainier, Spikes, or BCM etc.

    Good luck with your build.
     
  6. gazpacho

    gazpacho Member

    Joined:
    May 28, 2004
    Messages:
    1,166
    PWS Pistol Buffer Tube
     
  7. Big Shrek

    Big Shrek Member

    Joined:
    Mar 16, 2014
    Messages:
    261
    Location:
    Florida Panhandle
    Get the best trigger kit you can find.
     
  8. Balliet

    Balliet Member

    Joined:
    Nov 29, 2013
    Messages:
    59
    Location:
    the sticks
    I appreciate all the input guys I'm nearly there all that's left is barrel length and the gas system to go with it leaning towards the 10 and a half given the replies I've gotten hopefully some pics to follow thanks again
     
  9. MistWolf

    MistWolf Member

    Joined:
    Aug 17, 2005
    Messages:
    2,341
    Do a bit of searching to find a good deal on a 10.6 or 11.5 inch barrel. The carbine gas system work well with both barrel lengths. Using the Syrac Gen II gas block will allow you to tune the pistol to run reliably and with softer recoil.

    The Magpul MOE is a good handguard for the AR pistol as it's simple to install, rugged and very economical. Or the B5 handguard which is slimmer. Free float handguards are nice but cost more and are not necessary. Spend the money towards an Aimpoint instead
     
  10. 32_d3gr33s

    32_d3gr33s Member

    Joined:
    Mar 17, 2013
    Messages:
    288
    Location:
    West Michigan
    ive got a 7" barrel on mine and have had about a thousand rounds through it with almost no issues... The only issue i did have was the gas block wasnt tightened enough so the gas tube became misaligned. Caused a few jams until i figured it out. Just go with quality components and you wont be disappointed.
     
  11. Fishbed77

    Fishbed77 Member

    Joined:
    Nov 23, 2010
    Messages:
    3,039
    I picked up a 10.5" Melonite-finished barrel from Aero Precision, and I have been extremely pleased. I was able to nab it on sale for under $200. In the last few weeks, I've run about 600-700 rounds through it with no issues.

    http://aeroprecisionusa.com/barrels...el-1-7-twist-with-f-marked-fsb-taper-pin.html

    They make a version without the FSB as well:

    http://aeroprecisionusa.com/barrels/aero-precision-105-barrel.html

    So far, it has been flawless on my 10.5" SB-15-equipped pistol build (with the excellent KAK buffer tube that uses the carbine castle nut). With an H2 buffer, it shoots softly and cycles everything from cheap Russian steel-cased .223 to M193 and M855 to heavier match ammo. It is also proving to be just as accurate as my 16" carbine.

    I can also say that the Melonite/blackening finish (Aero Precision call it QPQ) is TOUGH, and it resisted my best efforts to mar the barrel when hammering on the FSB and installing the barrel.

    Much has been made of the benefits of an 11.5" versus a 10.5" barrel, but I have yet to see them in practice. As stated, this rifle has performed flawlessly, and 10.5" barrels have served well on the Mk18 CQBRs for years now.


    .
     
    Last edited: Jul 15, 2014
  12. justice06rr

    justice06rr Member

    Joined:
    Oct 7, 2011
    Messages:
    1,597
    Location:
    Florida
    I use Free-float handguards because they are easier to install and add a bit more accuracy depending on your setup. They're not necessarily expensive, depending on where you buy. You can buy them for under $100 at many places including ebay.

    Here's another good vendor of AR15 parts. They have freefloat handguards in varying lengths with free shipping:
    http://www.ar15depot.com/handguards.htm

    If you're on a budget, they have a 7.5" pistol barrel for $125shipped.

    Here is another Vendor of AR15 parts (SOTA) that has a 8" pistol barrel for $90.
    http://sotaarms.com/component/jshopping/category/view/13?start=12



    I built a 10.5" AR pistol with a carbine gas system with the SB15 in FDE. The 10" handguard gives it the same sight radius as a midlength rifle although it is a much shorter AR.
    DSCI0152-1.jpg

    For camparison, here it is with a 16" AR before I installed the SigBrace.
    FF087F5C-20A2-4A79-8C70-EF2E40E918FF.jpg
     
  13. rodinal220

    rodinal220 Member

    Joined:
    Jul 9, 2005
    Messages:
    1,298
    Location:
    USA
  14. wally

    wally Member

    Joined:
    Jan 2, 2004
    Messages:
    12,562
    Location:
    Houston, Tx
    I agree, will usually let you get a longer sight radius with your BUIS too.

    You probably don't want to go below 10.5" with 5.56 as it'll be hard to find a suppressor rated for it down the road.

    Justice06rr's photo with the SB-15 is pretty much my opinion of the sweat spot for such.
     
  15. Simmy952

    Simmy952 Member

    Joined:
    May 11, 2009
    Messages:
    72
    I just got finished putting one together. My goal was a budget friendly AR build. The parts used were a Anderson stripped lower, PSA MOE lower parts kit, and a Androcorp AR 10.5 upper. Like stated above, I would not go below a 10.5 barrel but if you want to go shorter that is your choice. There are many out there to choose from.

    http://custombuiltarms.com/ar-uppers/ar-pistol-uppers.html
    http://androcorpind.com/product-category/ar-upper-receivers/ar15-uppers/556-nato/
    http://shop.redxarms.com/UPPER-ASSEMBLIES_c3.htm

    These were just a few that I looked at. The only reason I went with the Andro upper was the cost. I was able to purchase the railed model 10.5 complete with BCG and handle for $450 shipped.

    Good luck with your build and have fun.
     
  16. HKGuns

    HKGuns Member

    Joined:
    Aug 29, 2004
    Messages:
    2,396
    Location:
    Bora Bora
    Buy a 10.3" DD MK18 upper and call it good.

    [​IMG]


    100 yards, Iron sights, first trip to the range. (I can barely see the target at 100 yards using irons.) Shots on the right are me walking the irons into the black.

    Zero malf's of any kind in several range trips since this target was shot.

    [​IMG]
     
    Last edited: Jul 21, 2014
Thread Status:
Not open for further replies.

Share This Page