MY First Build List: GB 12" and Bolt.

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  • Troutguide
    Warrior
    • Jan 2017
    • 380

    MY First Build List: GB 12" and Bolt.

    Well the efforts of this forum to increase the awareness and adoption of the 65G AR is working. I started with a Howa Mini and love it I have always been a bolt fan and opposed semi-auto guns, but I have been thinking about multiple shots on hogs so the AR has gotten more of my attention lately. If DNS would stop posting youtube videos this wouldn't have happened, damn you DNS! Anyway then I come across this good deal on a group buy bolt and think what the heck I can get some parts eventually and build a hog gun so I try and buy 2. Sold out and I only get one, so what to do with he remaining cash, I already paid BFT? Buy a 12" GB barrel with it and some more cash. Well that shot my budget but before I even know what is happening I have gone and ordered almost everything to build a Light weight Hog hunting Pistol with the intention of eventually getting the forms for a SBR and a Can. I have searched for the cheapest quality parts I can get away with but it is still way more than I planed to spend. Damn you All!!! I was perfectly content until I stated reading this site!! Not to mention I still have to start reloading so I can make all of this work even better.

    So here is the build list I hope it is going to all work together. I seriously know nothing about the AR except what I have read on this site and a few other google searches.

    Faxon GB 12" Barrel
    Lehigh Defense GB Bolt
    Mag Tactical Ultra-Lightweight Magnesium Stripped AR-15 Lower Receiver - Premium Grade
    AR15-A3 Stripped Upper Receiver, Mil Spec, W / Black Hard Anodized Finish - U.S. Commercial Contractor
    Upper Receiver Parts Kit Complete W / Ejection Port Dust Cover Assembly and Forward Assist Assembly
    AR-15 M4 Charging Handle Mil-Spec Quality
    RightToBear AR15 Lightweight Carrier - Black Nitride (carrier only)
    WMD Guns AR15 Nickel Boron NiB-X Cam Pin
    Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
    Omega Mfg AR-15 M16 M4 Titanium Firing Pin 5.56 NATO .223
    Tactical Superiority Mil Spec Quality Lower Parts Kit Lpk For Ar-15
    RTB AR15/M4 REDUCED POWER Carbine Buffer Spring
    PXTreme Adjustable Super Light Low-profile Steel Gas Block Mk1.5 - .750
    Spikes Tactical Melonited Treated Black Mil Spec Gas Tube (Carbine)
    KAK buffer tube and Brace
    Pistol Buffer Tube Complete Kit Heavy Duty W/ End Plate, Foam Cover (I like options and needed the buffer)
    10" Inch AIR LITE 7.4 oz Ultra Slim Keymod Free Float Handguard BLK
    C-Products 6.5 Grendel Magazines - 10 Round

    I still need:
    Optics(will have to wait a while before I get anything good might get cheap dot sight for now?)

    What else am I forgetting?

    I am shooting for as light as I can get for the pistol, trying to make the system cycle as slow and light as I can with the intention of reducing recoil, felt and cycle derived, and going subsonic when I get the Can. From what I can determine this would require the light BCG, adjustable gas, light buffer spring, hand loads to suit. Why not I mean its not like I have ever fired an AR before, I'm just too dumb to know what can't be done. In any event I bet it will shoot a hog at 100yd with some Hornady 123s.
    Last edited by Troutguide; 05-18-2017, 06:02 PM.
    "I rarely give a definite answer" - TG
  • Chrazy-Chris
    Warrior
    • Aug 2015
    • 169

    #2
    I would think you'd want a heavier spring to make up for the lightweight reciprocating parts. Buffer springs are relatively cheap so I guess you could always play around with a few. For a build like this I think the JP SCS would be right at home, but not so budget-friendly.

    For lightweight rails I really like the Midwest Industries lightweight, but I know there are lighter out there. It seems like some of these lightweight parts are really overboard and are a waste of money (in my humble opinion). The most noticeable part as far as weight is the barrel.

    Looking forward to seeing the build and wishing you the best of luck!

    Comment

    • Troutguide
      Warrior
      • Jan 2017
      • 380

      #3
      Thanks, to be honest I just ordered the spring bc it was on the same sale as another part and I heard it will help make subsonic work along with the adjustable block. I plan to order a standard carbine buffer system unless someone convinces me otherwise. I will look at your suggestions.
      "I rarely give a definite answer" - TG

      Comment

      • Chrazy-Chris
        Warrior
        • Aug 2015
        • 169

        #4
        Interesting... subsonics create more backpressure through the gas port, which is why you want an adjustable block so you can tune that down. I'm not sure how a lighter spring helps with that - I assume so that you can turn it wayyy down. But with a lighter spring you have less force coming back forward to strip the next round off the top of the mag, run it up the feedramps, chamber it, and lock the bolt. As with nearly everything involving firearms operation, it is a give and take and you have to find a happy medium. I tend to stick to standard parts because they are proven, but I'll admit that adjustable gas blocks are fun to play with and the SCS has me tempted. I've also used an extra heavy buffer with success, but this is not really needed if you have an adjustable gas block.

        Comment

        • Troutguide
          Warrior
          • Jan 2017
          • 380

          #5
          Like I said I really have no idea how this will all work. i have lots more reading to do before I trust myself to assemble this thing and make it go bang bang. I looked at the scs and it is a bit out of my budget at the moment. I like the concept though.
          "I rarely give a definite answer" - TG

          Comment

          • VASCAR2
            Chieftain
            • Mar 2011
            • 6219

            #6
            People will use a full auto bolt carrier because it is heavier than a standard bolt carrier which will slow down the cycle. Same reason some people will use a H or H2 buffer as the heavier buffer tends to slow down the cycle especially on full auto weapons (some say to also reduce felt recoil). One reason 3 gun shooters use the low mass bolt carrier is to reduce reciprocating mass and reduce recoil in conjunction with a muzzle brake. An adjustable gas block is desireable if you intend on using a suppressor.

            Maybe someone more knowlegeable than me will chime in as to whether a low mass bolt carrier has any advantage with a adjustable gas block or with a fixed gas block. I'd assume if a person used a low mass carrier to build the lightest weight AR-15 they could compensate for the light carrier weight with a different recoil spring and buffer.

            Comment

            • Troutguide
              Warrior
              • Jan 2017
              • 380

              #7
              This is the article that really got me interested in the concept. It shows both sides of the argument but Bill A seems to think it is viable but delicate, I dint mind that, this is for fun hog hunting and yotes.

              I'm curious about contradictory principles I've read regarding the felt recoil impulse of the AR system. A lot of people recommend heavier buffers and bolt carriers to cut down on felt recoil, relying on the inertia of the greater mass to increase lock time and eat up more energy before it is transferred back into the shooter. But then on the flip side of that coin, there are systems like the JP Low Mass Operating System which aim to reduce the amount of reciprocating mass within the
              "I rarely give a definite answer" - TG

              Comment

              • VASCAR2
                Chieftain
                • Mar 2011
                • 6219

                #8
                Thanks Troutguide, interesting read.

                Comment

                • The Profit Joseph Sith
                  Warrior
                  • Nov 2016
                  • 596

                  #9
                  I'm almost sorry about nabbing that other bolt before ya. :S but I wanted them too badly as I already have the two 12's and have been biting my nails hoping to get a job before they are gone, which I JUST

                  Comment

                  • mateba
                    Bloodstained
                    • Mar 2017
                    • 84

                    #10
                    I'm excited to see how this build works out. I am also perusing a low mass operating system. I found my KAK configurable buffer kit at ar15discounts.com for $45 weighing 5.6-1.7oz and plan on using a Wolff reduced power action spring with it. I've seen another buffer and spring combo at taccom3g that is meant for LMOS that is 1.5oz for $35. http://kapspearguns.com/upgrades--options.html has a carbon fiber pistol grip for $15 but I could not get the owner to report a weight anymore specific than 1-2oz. But that is almost an oz less than an standard A2 at 2oz and he did say they are compatible with AR15s.
                    Last edited by mateba; 05-07-2017, 06:06 AM.

                    Comment

                    • Troutguide
                      Warrior
                      • Jan 2017
                      • 380

                      #11
                      Just ordered the Kak tube and brace from here. Still need the buffers but they are easy to find.

                      Last edited by Troutguide; 05-18-2017, 07:43 PM.
                      "I rarely give a definite answer" - TG

                      Comment

                      • Troutguide
                        Warrior
                        • Jan 2017
                        • 380

                        #12
                        Okay I edited first post for new items ordered can someone look over this and let me know what else I may need to get this thing shooting? I hope I have it all now and am just waiting on a barrel bc I am running out of funds for a while. I am still under $600.

                        Faxon GB 12" Barrel
                        Lehigh Defense GB Bolt
                        Mag Tactical Ultra-Lightweight Magnesium Stripped AR-15 Lower Receiver - Premium Grade
                        AR15-A3 Stripped Upper Receiver, Mil Spec, W / Black Hard Anodized Finish - U.S. Commercial Contractor
                        Upper Receiver Parts Kit Complete W / Ejection Port Dust Cover Assembly and Forward Assist Assembly
                        AR-15 M4 Charging Handle Mil-Spec Quality
                        RightToBear AR15 Lightweight Carrier - Black Nitride (carrier only)
                        WMD Guns AR15 Nickel Boron NiB-X Cam Pin
                        Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
                        Omega Mfg AR-15 M16 M4 Titanium Firing Pin 5.56 NATO .223
                        Tactical Superiority Mil Spec Quality Lower Parts Kit Lpk For Ar-15
                        JP reduced power trigger spring set/I bobbed hammer and polished FCG
                        RTB AR15/M4 REDUCED POWER Carbine Buffer Spring
                        PXTreme Adjustable Super Light Low-profile Steel Gas Block Mk1.5 - .750
                        Spikes Tactical Melonited Treated Black Mil Spec Gas Tube (Carbine)
                        KAK buffer tube and Brace
                        Pistol Buffer Tube Complete Kit Heavy Duty W/ End Plate, Foam Cover (I like options and needed the buffer)
                        10" Inch AIR LITE 7.4 oz Ultra Slim Keymod Free Float Handguard BLK with steel barrel nut
                        C-Products 6.5 Grendel Magazines - 10 Round X2
                        2 PIECE "ZERO RECOIL" MUZZLE BRAKE WITH STYLE #2 ( Half Knurled) SOUND DIRECTOR SLEEVE
                        Last edited by Troutguide; 09-18-2017, 01:50 PM.
                        "I rarely give a definite answer" - TG

                        Comment

                        • BluntForceTrauma
                          Administrator
                          • Feb 2011
                          • 3897

                          #13
                          Maybe an E-Lander 17-round magazine?
                          :: 6.5 GRENDEL Deer and Targets :: 6mmARC Targets and Varmints and Deer :: 22 ARC Varmints and Targets

                          :: I Drank the Water :: Revelation 21:6 ::

                          Comment

                          • Troutguide
                            Warrior
                            • Jan 2017
                            • 380

                            #14
                            Thanks BFT, the 10 rd will do until more funds become available. When those second round barrels gonna be here? I know you have been talking to Faxon. Also the bolts are complete just need fiering pin, retainer and cam pin to make them work in the stripped bolt right? AR virgin and you are the one that made me drop my panties with the group buy. I just couldn't resist your 12" barrel.
                            Last edited by Troutguide; 05-18-2017, 07:38 PM.
                            "I rarely give a definite answer" - TG

                            Comment

                            • Troutguide
                              Warrior
                              • Jan 2017
                              • 380

                              #15
                              So in preparation for the 12" Faxon barrels that are due to arrive any year now i am putting the finishing touches on my pistol build. I have a mill spec standard US made FCG that was really rough and tough so I ordered the JP reduced power springs. While researching how to improve trigger function with the new springs I


                              Link to trigger work for this build and the buffer work. Barrel should arrive today along with timing lock for break, some aeroshell, sling and scope mount. Going with cheap mount and an old 3x9 I pulled off the muzzleloader until I can afford "good" glass.
                              "I rarely give a definite answer" - TG

                              Comment

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