Nearly 1-Hour of M4 Lore and Facts

Chapters: 0:00 The Bad Ball Powder Drama 3:20 The "Self-Cleaning Rifle" Lie 4:21 Edgewater Buffer and Bolt Bounce 6:08 The Forward Assist Stoner Fought 8:27 Congress Calls It Criminal Negligence 9:40 M16A2, M855 and the 1-in-7 Twist 11:03 The 3-Round Burst Trigger Flaw 13:36 Short Barrels and Dwell Time 15:36 CAR-15 Experiments: Colt 605, 606, 607, 608 19:00 XM177 Commando and the NFA Moderator 21:59 Chrome-Lined Chamber and the 11.5-Inch Barrel 23:45 The 14.5-Inch Fix: Colt 651, 652, 653 25:09 Colt 723, 727 and the XM4 27:01 The Impossible M4 Accuracy Spec 28:25 M4A1 Barrels Rupturing on Full Auto 30:03 Hot Chamber Extraction Failures 32:36 Over-Gassing and the H2 Buffer 35:31 The Dust Test the M4 Lost 37:35 M855A1 Wear, Dim Optics, Bought-Their-Own Triggers 40:13 Mk18 Program and the CQBR 43:33 Colt's Sole Source Contract Pushes LMT Out 43:59 MK18 Mod 0 and Crane's Three Bolt Fixes 46:01 MK 18 Mod 1, the RIS II and Mk262 51:39 URGI Program and the Pencil Barrel Controversy 55:13 HICAR Built to Kill the M7 56:30 M855A1+ and the Steel Case 59:30 Range, Weight and Recoil Targets 1:02:12 The Bolt and Barrel Problem This video traces every major flaw in the AR-15 platform from the M16 in Vietnam through the M4A1, the Mark 18, and the new HICAR program, and explains what fixed each one. The rifle soldiers carry today did not start out good. Army Ordnance switched the ammo, skipped the chrome lining, and told troops the gun cleaned itself, and those three decisions almost buried Eugene Stoner's design. This video walks the timeline in order, from the ball powder failures of the mid 60s, through the CAR-15 experiments and the XM177 Commando, into the M4 and the Mark 18, and ends with the HICAR program SOCOM built to kill the M7. 1 Hour M4 flaws & Fixes Deep Dive Disclosure: Sound: Epicdemic Sound Our videos are strictly for documentary, educational purposes only. Imitation or the use of any acts depicted in these videos is solely AT YOUR OWN RISK. Neither we nor YouTube are responsible for any injuries or damage to your guns if you try what's shown in our videos. We are not a federally licensed gun store and DO NOT sell or transact with serialized firearms. We don't sell guns and don't teach how to change them in illegal ways (such as full auto trigger or any grey area NFA topics). By viewing or flagging this video you are acknowledging the above.