HEAT .5 Observations

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  • This topic has 16 replies, 7 voices, and was last updated 8 months ago by RobRoy. This post has been viewed 67 times
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    • #62072
      First Sergeant
      Moderator

        Again, seeing some reoccurring themes.

        Blue Loctite is your friend. BUIS, sight mounts, flashlight mounts etc. need to have blue loctite on them. This will keep them from working loose and falling off when you need it the most.

        80% lowers. I understand the attraction of these, especially for someone who is behind enemy lines. I have yet to see one at class that doesn’t have some sort of issue. The biggest problem I see is mag wells that aren’t to spec. A lot of times the jigs that come with them aren’t perfect either. Be aware of this.

        Lube your rifles. Almost at the end of class one of the students rifles just quit running. Added lube and the rifle started running again. He said he didn’t put any lube on it that morning.

        Not all charging handles are created equal. Especially doing malfunction drills. The standard CH that comes on AR’s are OK but are not the best. My recommendation is to get a BCM medium latch. It gives you more to grab when charging the rifle.

        Get a quick adjustable sling. One that you can change the length on the fly with your support hand. If you choose to attach it where the extension tube meets the lower, make sure that it cannot rotate up and get in the way of running the charging handle.

        Older Eotechs that have the batteries in line with the bore still have the problem of randomly cutting off while firing.

        I will talk about ammo choices in a post tomorrow. It needs to be it’s own separate post.

        I used a new rifle this class. A Colt 6920 OEM2, Midwest Industries free float extended rail, Trijicon MRO and a BCM medium latch CH. The only thing I did to the rifle was paint it. Guess what? Everything worked right out of the box. I had one issue that was ammo related. I will cover that in the ammo post tomorrow.

        Good class with a good group of students, only one alumni.

        FILO
        Signal Out, Can You Identify
        Je ne regrette rien
        In Orbe Terrum Non Visi

      • #62073
        Robert
        Participant

          Great post!

          Training is the only way to figure this sort of thing out sans listening to PROVEN advice like this. For the hard heads, you’ll have to get to class to figure this stuff out. Bench shooting 50 rounds a year will NEVER show you how your equipment will hold up like a couple days of hard use like this.

        • #62074
          gatlinggun
          Participant

            Only buy an 80% AR lower with the mag well already machined, the rest is easy for a competent machinist.

            How do I know this? Ask me no questions and I’ll tell you no lies…..

          • #62075
            First Sergeant
            Moderator

              Only buy an 80% AR lower with the mag well already machined, the rest is easy for a competent machinist.

              How do I know this? Ask me no questions and I’ll tell you no lies…..

              All of the ones I have seen come with the magwell already done. They are still out of spec.

              FILO
              Signal Out, Can You Identify
              Je ne regrette rien
              In Orbe Terrum Non Visi

            • #62076
              gatlinggun
              Participant

                Just curious as to what makes them out of spec?

              • #62077
                First Sergeant
                Moderator

                  Just curious as to what makes them out of spec?

                  Mags will not fall free and are a pain in the ass to seat.

                  FILO
                  Signal Out, Can You Identify
                  Je ne regrette rien
                  In Orbe Terrum Non Visi

                • #62078
                  gatlinggun
                  Participant

                    Well apparently not all 80% AR receivers are created equal. The ones I have experience with have all worked as well as any “name-brand” AR.

                    Interesting.

                  • #62079
                    First Sergeant
                    Moderator

                      Well apparently not all 80% AR receivers are created equal. The ones I have experience with have all worked as well as any “name-brand” AR.

                      Interesting.

                      With all the different mags that are out there? GI aluminum(all makers), Magpul(all generations), Lancer etc.?

                      I have seen that some like one maker over another. That is wrong.

                      I want a rifle that will take any mag that I put in it and it works. Which means the mag well needs to be to spec.

                      FILO
                      Signal Out, Can You Identify
                      Je ne regrette rien
                      In Orbe Terrum Non Visi

                    • #62080
                      Joe (G.W.N.S.)
                      Moderator

                        …the rest is easy for a competent machinist.

                        This is true however few are are machinists of even the backyard variety. Most haven’t taken their time either.

                        Well apparently not all 80% AR receivers are created equal.

                        This is certainly true for most things. ;-)

                        Though it is possible to manufacture a quality AR this way, few have the patience to overcome their limited abilities IMHO.

                        A truly skilled machinist could build almost any firearm from scratch with proper drawings and/or reverse engineer one in a pinch with some trial and error.

                        In my opinion most mechanically inclined would be better off with building sheet metal firearms as the skill is less difficult. A good enough weld is easier to pull off for the layman than quality machine work with a drill press. :yes:

                        Fun hobby, but I think most would be better served by other arrangements.

                      • #62081
                        wheelsee
                        Participant

                          and once again, people dismiss the advice given by those who’ve BTDT……….. B-)

                        • #62083
                          Joe (G.W.N.S.)
                          Moderator

                            Gatlinggun I attempted to fix your post and it vanished. :unsure:

                            I did see it, but don’t know what happened.

                            So you’ll need to repost it if you want.

                            I’ve seen your work from an post a few years back.

                            Yes you are a machinist, but that is hardly the normal standard for homebuilding an AR!

                            With proper information I suspect you could build most firearms in existence.

                            I am one of those “backyard” types I referred to. The Difference is I have patience and know my limitations.

                            Let’s face it if we throw someone off the street into your shop, do you think they will be able to build a quality AR?

                            I don’t!

                            Now imagine them trying it with a drill press and a flimsy jig. :wacko:

                            Anyway your in a different category. :yes:

                          • #62084
                            gatlinggun
                            Participant

                              Thanks for the comments Joe. When I hit the post button my post just vanished.

                              To answer a question from First Sergeant, I’ve tried all of the AR mags I had available, all generations of Magpul, GI types of various makes and vintages (to include one VN-vintage 20 rounder), and some other makes of polymer mags I don’t own but had access to. All worked as intended. That is why I was curious about your comment.

                            • #62085
                              LouF
                              Participant

                                What quick adjustable slings would you recommend?

                              • #62086
                                gatlinggun
                                Participant

                                  I use Vickers combat action slings on both AR15 and FNFAL Paras. They work well.

                                • #62087
                                  First Sergeant
                                  Moderator

                                    Thanks for the comments Joe. When I hit the post button my post just vanished.

                                    To answer a question from First Sergeant, I’ve tried all of the AR mags I had available, all generations of Magpul, GI types of various makes and vintages (to include one VN-vintage 20 rounder), and some other makes of polymer mags I don’t own but had access to. All worked as intended. That is why I was curious about your comment.

                                    Glad to hear yours works and that you did the work testing it.

                                    What quick adjustable slings would you recommend?

                                    Blue Force Gear Vickers sling. I like the padded ones.

                                    FILO
                                    Signal Out, Can You Identify
                                    Je ne regrette rien
                                    In Orbe Terrum Non Visi

                                  • #62088
                                    Joe (G.W.N.S.)
                                    Moderator

                                      Vickers Slings

                                      I have been happy with all of Blue Force Gear’s products.

                                      Going to try out the Vickers ONE Sling…

                                      The Vickers ONE™ Sling was designed with smaller sub machine guns and pistol caliber carbines in mind. The 1” webbing fits 1” sling loops, like the CZ Scorpion EVO, without having to “bunch up” traditional 1.25” webbing. With less bulk and less weight, the Vickers ONE™ is perfect for wearing under a coat or over garments in a concealable role.

                                      …for a new project.

                                      Will review it soon.

                                    • #62089
                                      RobRoy
                                      Participant

                                        I got the V-tacs slings they do the job, and well built and if you research you can get an American made one if that is your thing.

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