and the comment about “needing 2-3 shots to make sure he is dead” id say that’s true for all calibers … even .50 BMG. why? you cant really be sure you made a lethal hit. not even on ranges under 50 yards. especially when the adrenaline is pumping though your veins.

and about replacing the ar15 platform…. sure. it has its problems. like reliability. but the great upside with it is that’s it so damn easy to upgrade. just slap a monolithic upper with gas system on it and you have fixed most problems… and this can be done gradually. and that’s good because you don’t have to retrain people on a new system, don’t have to replace all at once and can easy evaluate the system.

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Hi Destroyer,

I appreciate your contributions of your knowledge in the comments but
I need to ask you to refrain from insulting other commenters.

I am sure you know more than I do, and that is great, but just state
your opinion, do not call someone you disagree with an idiot, moron or
fanboy.

Building a community is hard work and it can easily collapse into
endless arguments if everyone insults each other. Please refer to the
comment policy (posted above the comment form).

Kind regards,

Steve

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Note: i am only citing facts. I wasn’t the one that was saying the Rangers didn’t have SCARs or multicam or that there were no rangers in afghanistan. Please think about what you are typing for the love of whatever makes you sane…

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All rifles get hot when the user goes cyclic. US Army tests showed that the M4′s plastic handguards could run from just under 120F to 300F depending on the location after 280 rounds were fired. I haven’t seen results for the KAC M4 RAS.

Even if you could magically isolate the handguards from touching the receiver and barrel, the radiated heat from the barrel will quickly make any handguard quite toasty. Even the wooden handguards and stocks of older rifle designs could get warm enough to char and smoke.

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As far as other guns if Robinson XCR had a better trigger pull yes it might be better. But that FN scar plastic pos is not worth the powder to blow one up. And they charge over 2-3 grand for them!

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Any closed bolt, air cooled weapon will have issues during sustained fire. Heck, even the open bolt machine guns require barrel changes to keep that up, and their barrels are normally made out of much better/heavier steel.

As far as the 12 magazines in 30 minutes goes, do you really think that he fired all of his rounds evenly over that 30 minutes? Just burn through a couple of magazines rapid fire and see how long it takes for the barrel to cool down. Once it is hot, it doesn’t just magically cool down when you slow the rate of fire later.

The fact is that the M4 is an excellent weapon as long as it is clean and used correctly. Having said that, it’s design makes it difficult and time consuming to clean. I personally prefer a few other designs like the SCAR, XCR, and I have high hopes for the new ACR.

Is the M4 a POS? No. Do I think there is better our there? Yes.

Disclaimer: I own several AR’s.

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Regarding the 5.56, having seen what the good ol 55g does with a 1:12 twist, and the 62g in 1:7 to humans, I’ll take the 55g every time. Just devastaing. Same with the 5.45×39. Nasty, nasty round.

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You can learn more about this at: https://peosoldier.army.mil/newpeo/Headlines/Bugler071209.asp

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1. Magazines. The GI mags are the biggest contributor to malfunctions in any m16 platform. Changing to a PMAG or CAA equivalent would fix most of the problems.

2. Maintance is not done to the level it should be. Springs and gas rings are not being replaced as often as they should. CLP needs to go. It doesn’t clean, lubricate or protect. Pat Rogers is a huge proponent of SLip 2000 and I use it as well. The rifle stays lubricated for much longer and with less oil.

3. Operating system. After going to a piston system I quickly saw the light. Direct Impingement is just too dirty. Does it work? Yes. Is it the best, cleanest and most reliable? No. I don’t care how someone says it, putting hot and dirty gasses in your upper are not the sane way to go. Heat causes expansion in metal and the carbon hardens up and creates more friction. Going to a piston system fixes by releasing all the gasses outside of the action and in turn allows for a lot less heat transfer. I tested it myself and after 1500 rounds on full auto, as fast as I could stuff rounds into he gun my bolt was still cold enough to hold in my hand and was clean. Testing was done with Wolf 5.56 55Gr out of an LWRCI M6A2. There were 0 malfunctions.

4. The 62gr 5.56 NATO round has crappy terminal ballistics at best. I have patched up 1 to many people hit with that round that should have killed them (head shots) but found that the round had rode the bone structure and only caused minor tissue damage. Upgrading to a 75gr round leaving a barrel with a 1:7 twist would solve most of our problems and still meet the Geneva conventions. A better solution would be an upgrade in caliber like the 6.8 or 6.5 and ditch the 5.56 all together. I have a problem taking a round to combat that I can’t even legally hut deer with because of its wound pattern is not up to par.

I’m not saying the M4 platform is a hunk of crap, it just needs an update. With new metal treatments and coatings online, it’s time for a change to the platform.

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