Even the Gun jesus, forgotten weapons???

@@Torqd_Off pretty much same level, he has extreme AR platform knowledge along with the brains to build and assemble them, from scratch if necessary

@@Torqd_Off Yes. Gun Jesus from FW repeats historical information without having lived or personally experienced that history. Though I enjoy watching him, he often has little or no context because he knows nothing about manufacturing or world-level marketing, combat use of these types of firearms. This man has lived much of his information or at least worked very close to it.

Chris is a walking history of Colt and has a ton of knowledge of other firearms manufacturers. Such a huge resource!!!

Greetings, Do you know how I can obtain and operator manual? Thanks, Steve

I love these technical and historical videos of his.

You have to ask! 😂

Hype sells...

Yeah you still see the effects of that smear campaign. Everyone today knows that was the gun that capped bin laden and it’s the weapon for tier 1 groups like delta, team 6, and hrt etc. but they’re not amazing weapons. Barrel life is fairly short and it’s a very limited system. Lmt and lwrc imo make a better piston ar

@@jaydubs6354 they sure do ! 416 was dumped just like the scar !

HK in general is really over rated, and are an absolutely terrible value on the market lol. You can get better guns for cheaper.

Yea haha I still remember as a teen seeing articles or videos on the xm8/416/scar and how they were sooooo much better than an ar15 that they were practically saying the army was negligent for not leaving the m16/m4 and upgrading too them. Made it seem like they were the toughest rifles on earth

I put a POV roller cam pin in mine, so far so good.

I agree because if you look at the mud test from inrangetv it blows the mud away.

@@bobbyraejohnson yes. The piston system is good if your a tier 1 operAtor who lays down heavy suppressive fire on the regular. For my needs a DI is just fine.

Those tests had a flawed premise, as well. Most of those rifles were full auto. The M4 use a cam-based burst trigger. Meaning, the cam has to cycle three times before it will reset, so if the bolt locks back before it cycles all three times, it will only cycle the remaining 1 or 2 shots, then reset. Every time the M4 failed to fire all 3 rounds, it was counted as a malfunction. Paired with old, used magazines, and it's obviously nothing more than a shakedown.

Thank you sir

Why would a gas impingement system work any differently? The gas from the gas tube also hits the gas key “off dead center angle”, putting a similar torque on the bolt carrier, pulling up on the bolt head and pushing down the rear of the carrier.

@@5133937 Are mistaking a true gas impingement with a DI-Inernal Piston in an AR design? On a true DI yes, you're correct, the forces and the problem is the same, even on long stroke guns like an AK, but on Stoner's Internal Piston design, the gas is bled thru a tappet, which you might think is where the forces are applied, but there actually routed down behind the bolt, forcing the bolt and bolt carrier apart, which unlocks the system. Those forces being applied directly behind the bolt face, inline with the barrel, imparts far different stresses than slapping the top corner of the bolt carrier.

I should specify, "far different" and far more linear...

JustAnother InternetExpert i have a Mega Maten with the MML handguard system. I think it’s better than a one piece. It’s just as rigid, but much easier to work on, should you ever need to. Mega’s one piece was called the Megalithic.

Was just uploaded as we speak! -Heather Bartocci

MrRmh3481 I’m not Chris but you certainly can buy the Colt 6933 SBR which has “M4 Commando” on it’s lower receiver. It’s actually still in-stock at ArmsUnlimited.

Believe Very rarely they do exist from back in xm177 days too (70s)

I agree. But he doesn't listen. - Heather Bartocci

Slightly modified 416, correct

Bendirval I think internal piston works just fine. We just need our military to properly maintain all the weapons in its inventory.

Caleb Clark I prefer the shorter rail. I don’t do that Costa sword hold

SmallArmsSolutions I get it. But it just looks dumb. I love the fact Pws has full length rail. Lwrc also made theirs longer with the ic-a5. Both better piston rifles

To each their own. But I think adding more weight (via a longer rail) for no functional reason is dumb. Doing anything just for looks on a battle rifle is dumb to me. I’ll take the lower weight over looking cool any day. But hey, if you’re really into looking cool, I’m sure there’s an Airsoft gun out there for you.

Trey Gregory Lol. You’re a major pussy if you can’t handle 3 more inches of aluminum handgaurd. Also, the 516 is far from a battle rifle. Lol

Trey Gregory a longer rail gives you more space to rest your gun on barriers to take shots without resting it directly on the barrel, avoiding a change in point of impact.

Was young and ignorant!

I would think that the square head keeps it from falling into the carrier, or maybe it's baring surface is more for alignment so it doesn't fetch up in movement. Not sure

PotatoMasher had ramps on bottom rear of the carrier

Like the superlative arms carrier.

AK's are over gassed..

I believe he broke his back at one point and this is a brace. It's an older video, from not long after he started his first channel (which was deleted).

A video from a year ago when he was in a brace. A tree broke his back. -Heather Bartocci

dubya 87 not sure, not familiar with that kit

@@SmallArmsSolutions yeah I'm kind of thinking that I should just wait to find the correct 6940p upper and just buy one complete. If one ever pops up for sale at a decent price

dubya 87 sorry to tell you, Colt has not and will not sell that upper. External piston guns are only for sale to Le and military.

I know. A few have popped up on the secondary market but its very rare and they aren't cheap when they do.

Yes, the SA kit WILL fit. Best piston kit in the world IMO. Far better than Adams Arms. VERY light weight. I LOVE mine.

joe r was never given the reason, that was the requirement.

joe r potentially spec ops use. But I’m speculating out of my hindquarters

Grass is always greener...

@@GunFunZS At close range where most of actual assault rifle killing takes place (well-inside 200m) 7.62x39 is a very potent cartridge with a heap of "thump". With a 200m zero the bullet climb out of a 16.3-inch barrel is maximum 10cm inches at 100m, so it's pretty good for most real-life engagements. Even US military concedes that at 200m a 5.56mm M-16A2 has a hit probability of ~20% due to battle stress. Optics help, but there are other nuances. Today most body armor will stop the old M43 7.62x39, but then it's a standard copper/lead bullet. If we were to make it in a same construction as Russian 7N10 or US M855A1 it'd have good penetration too. At the time 7.62x39 was more impressive comparing.

Beach&BoardFan u It is a back brace. Sometime in 2016 Chris fell off a latter or something and broke his back. Many videos on his old channel( prior to being banned) in 2017 have him wearing this back brace.

GuitaristOnTheRoof wtf did he get banned for?! If his old channel was anything like this, there’s nothing even remotely controversial!

It’s not

Never been fired, never will while in my collection

@@SmallArmsSolutions Understandable. Would you ever allow someone with extremely precise measurement instruments to measure it down to the finest detail so others could replicate it and fire a copy?

@@JohnDobak I would never allow it to be disassembled beyond field stripping

Dude, you lack any form of mechanical understanding. The M16 is not direct gas impingement. You can look it up! It is a piston made up between the bolt and carrier, hence internal piston. External piston means the piston is locates outside the receiver and on the gas block. If you lack that understanding, nobody will help you. Im curious as to what your experience is? I doubt you have worked in this industry and watch to many KZfaq experts who have never worked in the industry. Also, the military never referred to the M16 and direct impingement. Some uneducated moron just came up with a wrong reference name and it stuck.

@@SmallArmsSolutions • Gas-operated (Expansion of gas within piston inside bolt carrier), closed rotating bolt. Alright Mr. Bartocci, tell me you didn’t add this to Wikipedia. Nobody else is anal retentive enough to do it but you. Tim from MAC but he’s not that familiar with sophisticated nomenclature. You already conceded its generic operation is termed Di, for good reason I might add so, I will stipulate it is indeed a Gas-operated (Expansion of gas within piston inside bolt carrier), closed rotating bolt. Give me a break Chris, I’m retired from a major airline. I started on fighter jets in 1978 at McClellan AFB. I’m a licensed aircraft mechanic since 1983, though, licensed too is a generic term. It’s more correct to say I hold a DOT Mechanic’s Certificate with ratings of Airframe and Powerplant. That’s a mouthful. That’s why Di and piston are used and not bombastic language and to some, as in your case, obfuscatory meanings. I say that without reservation or compunction because direct impingement is a type of gas operation for a firearm that utilizes gas from a fired cartridge to impart force on the bolt carrier or slide assembly to cycle the action. You always say, “I know some will disagree with me - put it in the comments.” You’re a great teacher Chris and a great man. We just don’t agree. No disrespect directed to impinge upon your persona.

Stating facts is not being anal, it’s being a professional. One who has worked in this industry. You are good spreading misinformation, good for you. Direct gas makes no use of a mechanical piston. MAC is professional, he spreads proper information. Im not here to convince a closed minded individual who ignores facts. If you dont like my approach to my profession, there are many hobbies run channels you can watch.

@@SmallArmsSolutions • You ignore the fact I went on record and stated you were a great teacher and instead focus on my contentions. If calling it an internal piston gets it for you and Tim, then rock it. I watch all of Tim uploads as well as yours. You are both quintessential professionals. That doesn’t mean I agree with every jot and tittle. It does mean you don’t start every VDO with a sophomoric vaudevillian skit. Professionals use both operating systems • that doesn't mean one isn't superior. If one system can adjust for climatic conditions, a variety of ammunition, and suppressor use, it's a no-brainer. Di supporters are analogous to climate change activists; they believe in something manufactured that only exists for those in the swamp that can profit. You’re brainwashed like a liberal. If you can’t wrap your head around the 3 reasons I just stated, you’re loyal to a tainted cause. Why isn’t Sirois designing über internal pistons? Di’s are so janked they’re manufacturing adjustable gas key/gas paths. I can only laugh and applaud your devotion to Mr. Stoner. Adjustable gas paths are inane when compared to an adjustable gas valve. Chancing polluting the lower receiver is inane. Which one of us is disseminating misinformation? This is where you shine because you have inside knowledge. I don’t know if the following are true but I would trust YOUR information. The SIG MCX rifle has been used by various militaries and SWAT teams, including the Ukrainian Armed Forces and the U.S. Special Operations Command. The MCX-SPEAR/XM7 has also become the new standard issue rifle for American soldiers. The British police and SAS troops also use an older version of the SIG MCX called the Virtus. I don’t expect a reply, I cut deeply on this response; didn’t leave you any wiggle room. If Sirois won’t tell you, I will.

You have obviously no experience with internal piston rifles, at least none in the real world. You dont understand the mechanics and not even the history. Chris Sirois is a friend and colleague and we have worked together on a few designs. Im also guessing you’re not a veteran who has used these systems. Each has it areas where they shine. Your misguided opinion is based on commercial rifles build to no military standards. If you understood when tests these guns go through and pass you would not make such misguided statements. I am very familiar with what the Ukrainian Army uses, I have worked over there 3 times. You? I have spent a significant ammount of time at Fort Benning and Bragg with SOF. Have you? M4A1 has been most of their weapons of choices. I have also took part in weapon replacement programs all over the world. My guess is you have not. You have not see these different platforms compete head to head. The external pistons shine in short barrels, short barrels suppressed, over the beach and bore obstructions. The US Army has been very pleased with the performance of the M4 which is why it’s still in use. None of these other weapon have offered anything significantly better. Most of the people who speak as you, are people who are tinkerers, buy substandard components and often done know how they go together. Sometimes you need to keep your ears open and mouth shut and listen to those with experience. I fully state in several videos where certain weapon exceed some of the parameters of the internal piston. Those generally are limited SOF situations. Chris Sirois and many other engineers will tell you the same. Chris has not messed with internal piston because he was asked to build external piston guns. For military contracts, there is not really anyway to compete with Colt, LMT and for some small part KAC. Chris exploited the strengths of external piston and went in that direction. Same as many other companies making external piston versions of the M4 (HK, Caracal, Beretta, LMT….). Military weapons are not meant to and should not have adjustable gas systems. Suppressed and unsuppressed if the system is not balanced for both. Internal pistons do not require it in military weapons with military ammunition. If you understood engineering and Military-Spec, you would understand that the weapon is designed around a specific round with a specific propellant which has spaced out chamber and port pressures. You dont need adjustable gas for this. In the commercial arena where you have ammo all over the spectrum, there it becomes a balancing issue. I dont expect a response. This is a. Sharp dose off reality of this industry and the mechanics and how weapons are designed. Which isn’t clear you have no understanding of. I try to educate people on the right points. But there are some people out there, you cant teach them a thing. They are so caught up in their own head that you could show it right to them and they would disagree.

I wrote manual for the LE 1020. I never saw one for the LE 6940P. Does not mean there was not one.

@@SmallArmsSolutions Thank you