

Posted: 7/26/2016 11:19:11 AM EST
The US Army has taken one more step towards further improving the reliability of the controversial M16 and M4 series of rifles, according to a TACOM announcement.
The Army is introducing a new pattern of magazine to supplant the older black, green, and tan follower magazines, respectively. Called the “Enhanced Performance Magazine”, the new pattern sports a tan magazine body and a blue follower, for identification, and boasts a 300% increase in the mean number of rounds between stoppages when used in the M4 Carbine. Unlike previous magazines, the EPM uses a new, modified magazine body (and therefore not interchangeable, hence the different color) which presents the rounds at a more favorable angle to the rifle’s feedway, improving reliability and, importantly, preventing the hardened steel tips of new 5.56mm M855A1 Enhanced Performance Rounds from contacting the aluminum feed ramp section on M4 type rifles. ![]() New magazine is shown in grey, the old in orange - note the different feed lip profiles. Full Story ETA: Per the document here, these are being made by Center Industries. |
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Serious question, have there been serious reliability issues with the M4 to merit the change?
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Do I need to dump all of my GI mags now and upgrade to these to stay relevant?
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Watch out. All your shit just turned obsolete. Where do we purchase?
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Serious question, have there been serious reliability issues with the M4 to merit the change? A1 has been chewing up the feedramps. Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). |
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Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). View Quote View All Quotes View All Quotes Quoted:
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Serious question, have there been serious reliability issues with the M4 to merit the change? A1 has been chewing up the feedramps. Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). If you look at the CAD in the OP, the angle of the feedlips has been raised to prevent the steel nose of A1 from contacting the aluminum portion of the feedramps. |
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Quoted: Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Serious question, have there been serious reliability issues with the M4 to merit the change? A1 has been chewing up the feedramps. Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). |
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Feel free to forward your old, obsolete, unreliable GI mags to me for proper disposal...
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Serious question, have there been serious reliability issues with the M4 to merit the change? View Quote Some, mostly due to institutional retardation when it comes to maintenance. Most units act like throwing away old shitty mags is a mortal sin, then they wonder why they keep having problems, and start the "herp derp the M4 is a piece of shit". |
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How is it that between my time in the Army and the all the rounds fired as a civilian from my AR15s I have never once had a stoppage from a good GI mag?
This includes mags with black, green, and tan followers. |
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If you look at the CAD in the OP, the angle of the feedlips has been raised to prevent the steel nose of A1 from contacting the aluminum portion of the feedramps. View Quote View All Quotes View All Quotes Quoted:
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Serious question, have there been serious reliability issues with the M4 to merit the change? A1 has been chewing up the feedramps. Did they change the case dimensions for that? I thought it was just a new projectile (and maybe propellant?). If you look at the CAD in the OP, the angle of the feedlips has been raised to prevent the steel nose of A1 from contacting the aluminum portion of the feedramps. I see, thanks. |
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Looks like you could upgrade old ones with the right tooling, but you would have to choose between widening the feed lip gap or stretching the metal.
Not interchangeable? Sounds like they are interchangeable, just different NSNs. |
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It just means you haven't fired enough rounds ![]() View Quote View All Quotes View All Quotes Quoted:
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How is it that between my time in the Army and the all the rounds fired as a civilian from my AR15s I have never once had a stoppage from a good GI mag? This includes mags with black, green, and tan followers. ![]() Or perhaps there was never really a problem to begin with? |
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Serious question, have there been serious reliability issues with the M4 to merit the change? View Quote "preventing the hardened steel tips of new 5.56mm M855A1 Enhanced Performance Rounds from contacting the aluminum feed ramp section on M4 type rifles. " I bet it has to do more with the new bullet design(s) and less with the reliability of the old magazines. The old magazines and new bullet designs are probably the issue, judging from the statement. Also, I'm betting they probably strengthened the edges of the magazines, so they're less prone to bending. |
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Or perhaps there was never really a problem to begin with? View Quote View All Quotes View All Quotes Quoted:
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How is it that between my time in the Army and the all the rounds fired as a civilian from my AR15s I have never once had a stoppage from a good GI mag? This includes mags with black, green, and tan followers. ![]() Or perhaps there was never really a problem to begin with? Or maybe you haven't been firing M855A1 rounds, as the article clearly says the new mag is in response to problems specific to them. |
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Looks like you could upgrade old ones with the right tooling, but you would have to choose between widening the feed lip gap or stretching the metal. Not interchangeable? Sounds like they are interchangeable, just different NSNs. View Quote Cheaper and easier to throw them away at $7 a pop than rework. |
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Looks like you could upgrade old ones with the right tooling, but you would have to choose between widening the feed lip gap or stretching the metal. Not interchangeable? Sounds like they are interchangeable, just different NSNs. View Quote Not interchangeable with old magazine followers. The previous gray mags were all the same regardless if they had a black, green, or tan follower. Now both the follower and mag body changed, and are not interchangeable with old parts, so they changed the color of the mag bodies. Blue followers go with tan mags. All other followers go with grey mags. |
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So will the market get flooded with the old mags, or do they all go to a shredder?
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Cheaper and easier to throw them away at $7 a pop than rework. View Quote View All Quotes View All Quotes Quoted:
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Looks like you could upgrade old ones with the right tooling, but you would have to choose between widening the feed lip gap or stretching the metal. Not interchangeable? Sounds like they are interchangeable, just different NSNs. Cheaper and easier to throw them away at $7 a pop than rework. and until M855A1 becomes available on the open market (I have only seen 1 round in private hands) we will have no issues with the old style. I look forward to the flood of surplus magazines! |
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I'll bet there are going to be a boat load of perfectly good old style GI mags hitting the army's dumpsters over the next year or two.
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For shit and giggles, we used the USGI mag paracorded to our barracks fridge as a bottle opener that had opened hundreds if not thousands of Beck's bottles on a range day and had zero malfs.
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Didn't Okay do a redesigned Enhanced magazine about a year ago?
When they dropped the NHMTG name? Did that have anything to do with this> |
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Quoted: and until M855A1 becomes available on the open market (I have only seen 1 round in private hands) we will have no issues with the old style. I look forward to the flood of surplus magazines! View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Looks like you could upgrade old ones with the right tooling, but you would have to choose between widening the feed lip gap or stretching the metal. Not interchangeable? Sounds like they are interchangeable, just different NSNs. Cheaper and easier to throw them away at $7 a pop than rework. and until M855A1 becomes available on the open market (I have only seen 1 round in private hands) we will have no issues with the old style. I look forward to the flood of surplus magazines! Brings the question, will A1 be sold to the pubic? |
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Quoted: Or perhaps there was never really a problem to begin with? View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: How is it that between my time in the Army and the all the rounds fired as a civilian from my AR15s I have never once had a stoppage from a good GI mag? This includes mags with black, green, and tan followers. ![]() Or perhaps there was never really a problem to begin with? |
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Tan magazine with blue followers?!
I wonder when they will be available for civilians. |
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Quoted: Quoted: Serious question, have there been serious reliability issues with the M4 to merit the change? A1 has been chewing up the feedramps. |
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