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Posted: 3/22/2017 1:47:42 PM EDT
| I'm familiar with the Colt 733 but not so much the 933. Is it just an M4A1 with a 11.5" pencil (.625" OD) barrel? |
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Pretty much. I don't remember if it's FA or Burst though. The current semi - Commandos are the same specs I think - still a ltwt profile barrel. I love the 11.5" lightweight carbines. |
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Thanks for the replies! Any idea what the proper markings are on the lower receiver? There's very few photos online and most of them are airsoft whilst the others are too low of a resolution to make out anything. |
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These were the best photos I could find, if somebody has better ones please do share. Looks like this one might have the M16A2 commando markings you mentioned, as well as the skinny "CAR-15" style hand guards.
Any idea when they were first produced and if they ever made it to any units? 
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From what I could find, the 933 has been in service since 1995 and is still used by some SOF units, but there is really no way to find out what number of them are still in service or which units are still using them. FA, pencil barrel. |
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Yes. Although there are a several different Commandos, each has its own model designation based on its configuration. Quoted:
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Now I'm confused, wouldn't that be a 733 given the fixed carry handle? Although there are a several different Commandos, each has its own model designation based on its configuration. Quoted:
Force Recon used the 933 for awhile. I've seen pics. jrs93accord - did you ever carry one? |
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Here's something I always wondered about: What's the model number for an A2 Commando? Is it still 733, or is it say, an 833? Attached File |
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The Model 733 came with A1, A1E1 (C7), and A2 type upper receivers. I built one based on the A2 upper receiver. Barrels were either the A1 or A2 profile and were 1/7 twist as these were part of the M16A2 series weapons. Attached File 
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The Model 733 came with A1, A1E1 (C7), and A2 type upper receivers. I built one based on the A2 upper receiver. Barrels were either the A1 or A2 profile and were 1/7 twist as these were part of the M16A2 series weapons. https://www.AR15.Com/media/mediaFiles/76904/006-172520.JPG A 733 with an A2 upper is a 738. Colt has never made A2 profile 11.5" commando barrels as standard production. |
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This is just flat out wrong information. A 733 with an A2 upper is a 738. Colt has never made A2 profile 11.5" commando barrels as standard production. |
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Just to confirm, the 11.5" barrels (both A1 and A2) have the same profiles as shown in this photo, right? http://i129.photobucket.com/albums/p203/CHRIS65-IL/Profiles_A2_A1.jpg~original |
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Incorrect. The 733 did come in the A2 configuration towards the end of production. It was still a full-auto carbine. The 738, while in the same A2 configuration was different in that it had 3-round burst and a full-auto function. It was referred to as a M4 Commando Enhanced. |
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Just got an email from Colt -
Behold, the Colt 933 EPR Attached File Attached File |
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This is just flat out wrong information. A 733 with an A2 upper is a 738. Colt has never made A2 profile 11.5" commando barrels as standard production. Quoted:
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The Model 733 came with A1, A1E1 (C7), and A2 type upper receivers. I built one based on the A2 upper receiver. Barrels were either the A1 or A2 profile and were 1/7 twist as these were part of the M16A2 series weapons. https://www.AR15.Com/media/mediaFiles/76904/006-172520.JPG A 733 with an A2 upper is a 738. Colt has never made A2 profile 11.5" commando barrels as standard production. I know nothing about the 738 but like he mentioned I've never seen nor heard of a Colt 11.5" .750" barrel until you made your claim. Do you have any photos of these barrels with Colt marks? I'm not saying that I don't believe you, I'd genuinely like to see the pics because I'm interested in this stuff. For years I'd heard people say that a Diemaco C8 was identical to a Colt 654. I'd tell them that wasn't the case, that a C8 had a .750" FSB but had a lightweight profile as I'd never seen one with a .625" FSB. Lo and behold a 1/7 14.5 lightweight with .625" FSB and Devtek markings surfaced proving me wrong. I've still never seen photos of the .625" in service but I must admit that now it seems likely. |
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