High Exposure

With the Glocks it isn't the extractor so much as the ejector when shooting 9mm in a .40. The .40 ejector just nips the edge of the case during extraction. It is my understanding though that using a ".40-9mm conversion" barrel and not just a 9mm barrel alleviates some of the inconstancy. My KKM 40-9 conversion barrel has been flawless, but I don't use it in a social gun. That being said, if I had a G27/23/22/35 that I wanted to shoot 9mm from regularly or for SD/CCW purposes, I would get a conversion barrel and spend the $32 on the 9mm trigger housing with ejector, 9mm extractor and extractor spring bearing. ETA: Oh and my vote is still for the G35 with a 9MM conversion barrel and an AA .22 kit for a G17.

Wait, I want to hear more about the narwhal horns.... You have a line on these?

What are the rest of the specs on the rifle? Is this a built gun or a complete rifle? Complete upper or built upper? Who makes the BCG? What barrel, gas tube, and gas block, are you using? What length is the receiver extension - carbine or rifle? Is the stock pinned and if so, is it pinned correctly? Is the action spring or buffer rubbing on anything in the receiver extension? I agree with MWPX, it sounds like a gas problem and that is what I would focus my attention on - after I swap in a standard action spring and a standard buffer and see if that solves any issues. Another thing to try would be to swap lowers with another AR that I know works. If nothing changes I would continue to use the standard parts while running ANY diagnostics. Having too many non-standard parts make it tough to track down the true source of any issues you may be having. The test to determine if a rifle is undergassed is to put one round into a mag, load, fire and see if it locks back on the empty mag. If it won't lock back on an empty mag that is a sign of an undergassed system* If it fails that test I would check the BCG first - in my experience a loose carrier key is the primary culprit for gas issues. Again, as a quick test I would swap BCGs with another AR that I know runs well and see what happens. If that doesn't solve the issues I would check the rat of the gas system, one component at a time. *being undergassed is not the only thing that can cause this issue but it is the most common reason.

Glock 35 and a 9mm conversion barrel.

I am not a die hard fanboy. If you search you will find posts where I bemoan Glock "Purrrfexion" and bitch about their CS, constant blame throwing, and retarded product development. But all my social pistols are still Glocks. I recognize that HK, Sig, S&W, Beretta, etc... make decent pistols that are perfectly serviceable. I just happen to prefer Glocks as I have the most time on them and I shoot them better than the rest and they have all of the features I require in a fighting pistol. You like HK or Sig or S&W? Great, good for you. I don't for me.

I posted this in another thread - http://njgunforums.com/forum/index.php/topic/57841-glock-triggers-how-they-work-and-how-to-make-them-better/?fromsearch=1 I thought it may be applicable here. That said, I add Ameriglo Spartan Sights, Glock OEM extended controls for my little girl sized fingers, and a Prezine Polymer Magwell for full size duty guns. The same, minus the magwell for compact and subcompact Glocks. I also have KKM barrels in my 2 Glock 35s.

Barms, I remember a post where you said you couldn't see your aiming point on the target, I don't remember you posting anything about fuzzy rear sights... ETA: disregard, I found it: http://njgunforums.com/forum/index.php/topic/64269-is-my-barrel-crooked-or-iron-sights-inconclusive-at-50-yards/?fromsearch=1

Universal Truth #52: Nothing created by man will be perfect or last forever. I am a huge BCM supporter. I had a bad bolt carrier. It happens. I emailed and a CS rep ran me through a pretty thorough diagnostic process. I received Return Authorization and sent it back on their dime. I had a new one in 5 days. What more can you ask? After all of the bad BCGs I have seen by Bushmaster, DPMS, Olympic Arms, Rock River, Armalite, getting one bad part from BCM is practically statistically insignificant.

Lol!! I was just going to post this!!!! :ROFL:

Well done! What's the difference between the 15-2 and a 15-3?

And FDE!

I agree, but I do like the Foliage Green as well!

Please don't clutter this thread with that discussion, start a new thread if you wish to talk about that.

My other rifles all have the BCM GF Grip and the MOE-K grip feels similar enough that I can't tell the difference.

This is what I ended up with: I am very pleased!

Latest build. I used one of those Troy $699 uppers (16" midlength 1/7 barrel, Alpha rai with sightl, Troy rear sight - put on my SPR and replaced with MBUS - and includes BCG and CH). All I need is an optic and I am all set. I am digging the Magpul Stealth Gray Furniture.

Disregard my previous. Reading is fundamental. I thought this was posted in the AR section. Take a look a Troy, they are offering a pretty cool AK front end set-up soon.

Uncertainty =/= luck Uncertainty can be overcome with confidence, preparation, surprise, speed, and violence of action. Luck goes both ways.

It's like people drop 30 IQ points and forget all about the rules of physics when they get a gun in their hands. Don't even get me started on the "shoot 'em in the leg" garbage Luck is not a tactic. Hope is not a course of action. If that's the case, why train at all. Save the money you would spend on ammo and training and buy beer. If it is all luck, what makes a trained shooter any better than Joe Schmo off the street? What makes a professional better than an amateur? You don't have to be Jerry Miculek to prevail in a deadly encounter. You need to be prepared - equipment, mindset - and proficient - training. As far as caliber, if you are prepared and you have a platform that launches a proven "duty" caliber you don't have to worry about pesky things like penetration or energy transfer, or any of the things the author is talking about. You can remove the "caliber police" from the equation by choosing a decent caliber with which to defend yourself. If you have a .38/9mm/.357/.40/.45 instead if a .22/.25/.32/.380 on the nightstand on the worst night of your life, it's a non-issue. If you choose your defensive firearm based on proven ability balanced by how well you shoot it, instead of how well conceals and how comfortable it is, caliber takes a back seat. Everyone is responsible only for themselves, if some choose a .22 for SD/HD than that's on them. .22 may account for more deaths, I don't know and don't have those stats. If it does I am curious to see if that includes suicides and accidental deaths - which is an entirely different set of circumstances than a defensive/life saving shooting.

The human body is an amazing and resilient machine. It can take a lot of damage and continue to function if the mind that controls that body doesn't want to quit. Oh, and just a q uick point of orrder - Below the sternum is not "dead center" of the chest. Now, please define "center of mass". I bet the true definition is a lot different than what you may think. I am not picking on you, but this is one of the very things I am talking about. Shooters routinely mention "center of mass" because they hear it in movies or on TV without ever knowing the true meaning of the term as it has been completely subverted from what it really means. Simply put "center of mass" is the center of the biggest visible portion of your target. For example, if all you can see is a thigh, and you can identify the thigh as that of your attacker, and that attacker is still a deadly threat - then you aim for the "center of mass" of the thigh and you go to work. Without X-ray vision you can't assess shot placement. Nine times out of ten you won't even see your hits on the body. Knowing your gun/trigger and following your sights is the only indication of whether you may have gotten hits. There is rarely a splash of blood or chunks of meat flying to see when you get a hit. If you are lucky, you may see the threats clothing get disturbed, and that is all. You also don't know what a bullet will do once it enters the body. Even if your sights are perfectly aligned on your targets heart, once that projectile breaks the surface of the clothing and begins to be influenced by fabrics, flesh, bones, organs, fluids, etc... you can't always predict what will happen. You can only assess the change in behavior your shot placement created. Based on that assessment you continue to shoot until you get the desired result.

No fight on my end. I just wanted to see if he could back his statements up with facts. Of course, he couldn't. What happened to you can happen to anyone using a pistol with a slide mounted safety. When I first started at my PD we were issued S&W 4013TSW that had its safety mounted on the slide. It got knocked to the "safe" position quite a few times in training, especially when guarding against grabs or training weapon retention. The fix, (before going to Glocks ) was to train to use the slide lock/release when conducting a speed reload and to add a tactile check of the safety to your reload and malfunction reduction drills. Now you know too and you are prepared. Drive on. More importantly, you need to review your overall malfunction reduction plan. You get anything other than a bang you go directly to immediate action (non-diagnostic): Tap, Roll/Rack, Assess. You get a second no-bang, you go to remedial action (diagnostic): Lock, rip, rack, reload - only now you know that a check of the safety is also indicated with your remedial action.

I think you are 100% right. I think how guns, gunfights, and TTPs are portrayed in the movies and on television has done more to inhibit a realistic belief of what guns are capable of than anything out there - they have literally made us dumber as a community. The worst part is that liberals, juries, the media, and legislators are basing emotions, verdicts, biases, and laws due to the same influences. I know! Right? I have said it again and again, placement trumps caliber all day long.

I thought this was a really well thought out article that slays a few sacred cows, and plainly states some of realities of real world terminal ballistics. http://m.policemag.com/article/2426/stopping-power-myths-legends-and-realities

I thought this was spot-on, and humor aside, gives some good advice and something for all of us to think about. Vet your sources, make them prove it, and when asking advice "frame of reference" is paramount - especially when talking about firearms. http://www.gunnuts.net/2014/05/09/the-5-worst-places-online-to-get-firearms-advice/ While you may disagree with the names entities on the list, the gist remains the same.

The rear aperture is supposed to be blurry.