Skip to content
View in the app

A better way to browse. Learn more.

New Jersey Gun Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

14.5" Upper comparison

Featured Replies

That's a nice looking rifle.. I'm really leaning toward a Spikes 14.5" upper.  They just need to start showing up in stock somewhere. 

 

One question:  Why the RSA?  Doesn't the MI Rail have a QD hole right there?

 

thank you

 

I rarely use the 1 point setup.. but I like having a clip front and back so I can take the MS3 down to 1 point if I want to for some reason... its all about options.. lol 

also I prefer the way the gun hangs setup like this.. 

I have that spikes upper that you mention. I just got it from AIM a couple of weeks ago. It's a pretty sweet gun.

 

10549782755_dc5a13dd26_c.jpg

I have that spikes upper that you mention. I just got it from AIM a couple of weeks ago. It's a pretty sweet gun.

 

10549782755_dc5a13dd26_c.jpg

 

I think I might pick one up the next time they become available.  What kind of iron sights did you put on it? 

I think I might pick one up the next time they become available.  What kind of iron sights did you put on it? 

I got flip up sights from PSA bundled together with the AimPoint PRO for like 415 shipped or something like that. They are aluminium and seem to be OK.

I think BCMs are undergassed, I am not sold on them. Mine malfunctioned once in auto with weak .223. They are very smooth, but to a fault. They even say they are "optimized" to shoot with military 5.56. I would buy them again, but I do not consider them Colts like some others do.

 

Since you are a newbie, and may be using newbie ammo, I'm thinking it's a toss-up between that and the Spikes. I have no experience with Spikes in 5.56, but they seem to have some followers.

 

 

I think BCMs are undergassed, I am not sold on them. Mine malfunctioned once in auto with weak .223. They are very smooth, but to a fault. They even say they are "optimized" to shoot with military 5.56. I would buy them again, but I do not consider them Colts like some others do. Since you are a newbie, and may be using newbie ammo, I'm thinking it's a toss-up between that and the Spikes. I have no experience with Spikes in 5.56, but they seem to have some followers.

 

So it malfunctioned once in auto with weak .223 ammo and it is BCM's fault. LOL   What gas system, What barrel length?  

 

There are lots of knowledgeable forum members here, maybe they can help you to get it to run.

I think BCMs are undergassed, I am not sold on them. Mine malfunctioned once in auto with weak .223. They are very smooth, but to a fault. They even say they are "optimized" to shoot with military 5.56. I would buy them again, but I do not consider them Colts like some others do. Since you are a newbie, and may be using newbie ammo, I'm thinking it's a toss-up between that and the Spikes. I have no experience with Spikes in 5.56, but they seem to have some followers.

.223 ammo is not meant to be fired on auto. it is a civilian cartridge and has lower pressure than a 5.56. that is why you can shoot it in a 5.56 chamber, but shouldn't shoot 5.56 in a .223 chambered rifle. i'm not surprised at all that you had a malfunction. but you can not blame the bcm for you being cheap with ammo and not using the proper ammo for the task at hand. as holeshot asked, what length gas system and barrel? additionally what type and weight buffer were you using?

I think BCMs are undergassed, I am not sold on them. Mine malfunctioned once in auto with weak .223. They are very smooth, but to a fault. They even say they are "optimized" to shoot with military 5.56. I would buy them again, but I do not consider them Colts like some others do.Since you are a newbie, and may be using newbie ammo, I'm thinking it's a toss-up between that and the Spikes. I have no experience with Spikes in 5.56, but they seem to have some followers.

Their gas ports are sized right. So it is either the ammo, or the length of the gas system you have issue with. Making a judgement on one single incident seems a bit much.

 

.223 ammo is not meant to be fired on auto. it is a civilian cartridge and has lower pressure than a 5.56. that is why you can shoot it in a 5.56 chamber, but shouldn't shoot 5.56 in a .223 chambered rifle. i'm not surprised at all that you had a malfunction. but you can not blame the bcm for you being cheap with ammo and not using the proper ammo for the task at hand. as holeshot asked, what length gas system and barrel? additionally what type and weight buffer were you using?

 

 

Holeshot is on my ignore list because he seems gay for me or something, I don't know, he follows me around here and makes insulting comments about stuff I posted years ago even though I have no idea who he is.

 

I have about 20,000 rounds of .223 through 2 uppers on auto without a single malfunction. One is a Colt, the other is a frankenupper. And, it has nothing to do with being cheap, the last several cases of .223 PMC and 5.56 XM193 I bought all for the same price - $290 out the door in 2012. I choose to shoot .223 a lot because it is not as obnoxious in auto from short barrels.

 

Go over to Uzitalk and share that wisdom with them that .223 is not meant to be fired on auto. There are so many SOT dealers and SOT machinegun manufacturers that will laugh you out of the thread. There is no basis for your statement, it's complete bullshit.

 

The BCM is a mid length with a 16" barrel. It's undergassed, it shoots slightly sluggish. Which is why it is so smooth, and why I would expect them to have more problems with .223 or weaker ammo than other rifles. I fired a BCM 14" carbine upper from a member on this board from Jersey and it fired even slower. That was why I went with the 16" md instead of the 14" carbine, since I had fired a 16" mid previously and knew what to expect. So, 3 separate BCM uppers, 2 different lengths and gas systems, all similar results.

 

I documented all of this including my choice of the upper on this forum, and your member posted video of the sluggish fire from his 14".

 

I'm not criticizing BCM, I love mine. They say their uppers are "optimized" for military ammo, and clearly they are, moreso than military guns are.

  • Author

Holeshot is on my ignore list because he seems gay for me or something, I don't know, he follows me around here and makes insulting comments about stuff I posted years ago even though I have no idea who he is.

 

 

Point of clarification:  At least on this topic, Holeshot had posted well before you did.  I don't know what the relationship is between you two, and I don't care.  Please keep the posts on topic.

 

As for the issue you bring up:  Correct me if I'm wrong but isn't "sluggishness" primarily dependent on either the length of the gas system and the weight of the buffer?

 

Point of clarification:  At least on this topic, Holeshot had posted well before you did.  I don't know what the relationship is between you two, and I don't care.  Please keep the posts on topic.

Point of clarification, somebody asked me to answer what he said. I thought it was helpful to inform them that I can't see what he said. Your complaint is off topic.

 

As for the issue you bring up:  Correct me if I'm wrong but isn't "sluggishness" primarily dependent on either the length of the gas system and the weight of the buffer?

 

 

In this case, it is the gas port.

Good luck with your choice Voyager9. Like I said try to take some of those members up on their offers to shot.

  

 

Go over to Uzitalk and share that wisdom with them that .223 is not meant to be fired on auto. There are so many SOT dealers and SOT machinegun manufacturers that will laugh you out of the thread. There is no basis for your statement, it's complete bullshit.

the basis for my statement is, .223 is inherently a weaker round than 5.56 nato. the .223 was designed to shoot out of a bolt action rifle for varmint. does your brain not grasp this concept? i'm not saying that it won't work with a full auto gun and in fact is has proved to work well. your 20,000 rounds confirms this. but i am not surprised that, everything else being equal, you suffered a malfunction with the round that wasn't designed to do what you asked it to do.

 

the basis for my statement is, .223 is inherently a weaker round than 5.56 nato. the .223 was designed to shoot out of a bolt action rifle for varmint. does your brain not grasp this concept? i'm not saying that it won't work with a full auto gun and in fact is has proved to work well. your 20,000 rounds confirms this. but i am not surprised that, everything else being equal, you suffered a malfunction with the round that wasn't designed to do what you asked it to do.

 

 

Give it up, you don't know what you are talking about, and I'm certainly not going to argue with you.

 

.223 ammo is not meant to be fired on auto. it is a civilian cartridge and has lower pressure than a 5.56. that is why you can shoot it in a 5.56 chamber, but shouldn't shoot 5.56 in a .223 chambered rifle. i'm not surprised at all that you had a malfunction. but you can not blame the bcm for you being cheap with ammo and not using the proper ammo for the task at hand. as holeshot asked, what length gas system and barrel? additionally what type and weight buffer were you using?

 

 

 

the basis for my statement is, .223 is inherently a weaker round than 5.56 nato. the .223 was designed to shoot out of a bolt action rifle for varmint. does your brain not grasp this concept? i'm not saying that it won't work with a full auto gun and in fact is has proved to work well. your 20,000 rounds confirms this. but i am not surprised that, everything else being equal, you suffered a malfunction with the round that wasn't designed to do what you asked it to do.

 

 

You know what, there is always the possibility that I missed something, so please forgive me and let me hear you out.

 

So, with the M16, you have two types of firing cycles:

 

1. SEMI firing cycle

2. AUTO firing cycle

 

Can you please explain to me which part of the cycle causes .223 ammo to be reliable in SEMI but not in AUTO? Which part of the cycle does the "inherently weaker round" fail in AUTO but not in SEMI?

I think BCMs are undergassed, I am not sold on them.

 

I would buy them again

 

 

It's undergassed, it shoots slightly sluggish.

I'm not criticizing BCM, I love mine.

 

No one is arguing with you,  you are arguing with yourself in your own posts.  LOL

 

I also never said BCM was better than Colt.   If I had a choice between the two I would pick Colt every time.

 

I like what BCM is doing and so do a lot of other people. He is building one heck of a reputation among some pretty elite shooters.

 

Is some of it Commercialism? Sure probably, but there are a few others who I doubt would stake their name and reputation on a sales pitch.

 

 

Your second post was better because it addressed your concerns and backed up your original statement.

 

I have never shot a BCM  (Middy or Carbine) FA  and I don't doubt your experience.... However,  I have shot a few BCM middy 14.5's with various pinned comps with .223 PMC Bronze and I really like them.  I have even shot weak .223 with an H2 buffer in it with no problems.

 

Also the OP never once mentioned using this upper for FA,   probably because like the rest of us he can't. 

   

 

   

 

You know what, there is always the possibility that I missed something, so please forgive me and let me hear you out.

 

So, with the M16, you have two types of firing cycles:

 

1. SEMI firing cycle

2. AUTO firing cycle

 

Can you please explain to me which part of the cycle causes .223 ammo to be reliable in SEMI but not in AUTO? Which part of the cycle does the "inherently weaker round" fail in AUTO but not in SEMI?

 

 

I thought your argument was that it would work in SA but not in FA?  is that correct or incorrect?

he can't read your post holeshot. but i'm apparently retarded and he is always right. i'm done arguing with people who can't use common sense and deductive reasoning. i tired to offer an explanation as to why the malfunction occurred. isn't there a saying along the lines of "never argue with a fool. they'll just bring you down to their level and beat you with experience"? i think this is one of those times...

 

to the OP, sorry for shitting up your thread. but i will stand behind my BCM upper all the way. and i believe it is on part with colt and other top tier companies.

 

he can't read your post holeshot. but i'm apparently retarded and he is always right. i'm done arguing with people who can't use common sense and deductive reasoning. i tired to offer an explanation as to why the malfunction occurred. isn't there a saying along the lines of "never argue with a fool. they'll just bring you down to their level and beat you with experience"? i think this is one of those times...

 

to the OP, sorry for shitting up your thread. but i will stand behind my BCM upper all the way. and i believe it is on part with colt and other top tier companies.

 

 

No, I don't think you are retarded LOL. And there are people here that can tell you for damn sure that I am not always right from personal experience.

 

And, I'm not going to argue with you, either.

 

Can you explain it to me or not? I just wanted to see if you knew something about the function of the cycles that I had missed.

After you explain to me your failure mode, I'll tell you how I previously blew off the explanation of a malfunction in the cycle as BS until somebody explained it to me in detail. So you can get a laugh at my expense. Possibly on top of your I Told you So :)

less pressure means less gas. to fire at the cyclic rate of a full auto m16 you need enough gas to work that bcg properly. with inertia being what it is less gas means slower cycle and more of a chance for the malfunction to take place. so if the design of the rifle was for a higher pressure round dont be surprised that when you run low pressure ammo through it it will not do as it was designed to do. and actually it doesnt matter if it is auto or semi. whos to say that that round wouldnt have caused the malfunction in semi?

 

less pressure means less gas. to fire at the cyclic rate of a full auto m16 you need enough gas to work that bcg properly. with inertia being what it is less gas means slower cycle and more of a chance for the malfunction to take place. so if the design of the rifle was for a higher pressure round dont be surprised that when you run low pressure ammo through it it will not do as it was designed to do. and actually it doesnt matter if it is auto or semi. whos to say that that round wouldnt have caused the malfunction in semi?

 

 

OK, so you have absolutely no idea what part of the cycle would be affected specifically in auto. I asked you to explain it, you can't. You just assume auto needs more gas. You have no idea why auto needs more gas, and no idea what you are talking about. BTW, the cyclic rate is the same in semi as it is in auto. I doubt you could even explain the cycle of an AR.

 

And, even if you were right, I get a lower cyclic rate with BCM 16" mid-length uppers and even lower with 14.5" BCM carbine uppers than with any other upper from any other manufacturer USING 5.56 AMMO AS EVIDENCED BY VIDEO POSTED ON THIS WEBSITE. AND AS WAS MY ORIGINAL POINT IN THIS THREAD. So, even though you haven't explained how a slower cyclic rate would mess up auto fire vs. semi, even if you were right, the BCM uppers have slower cyclic fire with 5.56. So, by your thinking, BCM uppers should be less reliable in auto.

 

Now, back to my obligation.

 

I finally burnt out the POS chrome-molly barrel of my frankenupper after about 10,000 rounds. It now works perfectly in auto with .223, and works perfectly in semi with 5.56, but is not reliable in auto with 5.56 ammo. Tell me why. This is not a hypothetical, it's real. I burnt out the barrel and it works with both kinds of ammo in semi and only .223 in auto.

 

Somebody told me why and I thought it was impossible. It's a very common issue but I never believed it. I felt like a dumbass once it was explained to me.

  

 

OK, so you have absolutely no idea what part of the cycle would be affected specifically in auto. I asked you to explain it, you can't. You just assume auto needs more gas. You have no idea why auto needs more gas, and no idea what you are talking about. BTW, the cyclic rate is the same in semi as it is in auto. I doubt you could even explain the cycle of an AR.

 

And, even if you were right, I get a lower cyclic rate with BCM 16" mid-length uppers and even lower with 14.5" BCM carbine uppers than with any other upper from any other manufacturer USING 5.56 AMMO AS EVIDENCED BY VIDEO POSTED ON THIS WEBSITE. AND AS WAS MY ORIGINAL POINT IN THIS THREAD. So, even though you haven't explained how a slower cyclic rate would mess up auto fire vs. semi, even if you were right, the BCM uppers have slower cyclic fire with 5.56. So, by your thinking, BCM uppers should be less reliable in auto.

 

Now, back to my obligation.

 

I finally burnt out the POS chrome-molly barrel of my frankenupper after about 10,000 rounds. It now works perfectly in auto with .223, and works perfectly in semi with 5.56, but is not reliable in auto with 5.56 ammo. Tell me why. This is not a hypothetical, it's real. I burnt out the barrel and it works with both kinds of ammo in semi and only .223 in auto.

 

Somebody told me why and I thought it was impossible. It's a very common issue but I never believed it. I felt like a dumbass once it was explained to me.

look i dont care why. like i said im retarded and dont know anything. im done shitting up this thread. if you want to grace us with  your superior knowledge then by all means.

I don't have any superior knowledge.

 

It's "Bolt Bounce." Which makes no sense. An AR bolt can't "bounce" once it's locked. I told everybody they were full of baloney.

 

Well, it actually means carrier bounce, and I was just an idiot.

 

Having burnt out my barrel, it became overgassed. So it cycled really fast. In semi, this is not a problem. Hammer waits for you to release the trigger and moves from the disconnector and then you press it and it fires.

 

In auto, it's a problem. The BCG moves forward and once the bolt is locked the carrier trips the sear and drops the hammer automatically. Problem is, there is too much gas, and the cycle is too fast. So, after the bolt is locked, and the sear is tripped, and the hammer is dropped, the carrier bounces off of the back of the bolt lugs and heads backwards, hits the hammer in reverse before the hammer can put full force on the firing pin.

 

Obviously this problem would not happen in Semi, since you are not going to pull the trigger the exact moment the bolt goes into battery after the prior shot. But in auto, for me it only happens with 5.56, not with .223.

  • 6 months later...

My guys snore more in the Spring & Fall, it's due to his allergies. When it's severe his white areas get pink. It's become pretty standard and we just ignore it because it eventually subsides.

 

 

Best regards,

Yaker

My guys snore more in the Spring & Fall, it's due to his allergies. When it's severe his white areas get pink. It's become pretty standard and we just ignore it because it eventually subsides.

 

 

Best regards,

Yaker

Are you lost little fella?

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.