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2/23/2005 7:26:45 AM EDT
[#1]

Quoted:
FWIW:  SAR had an article devoted to the 602 around two to three years ago.  I believe it is the same issue that has an interview with L. James Sullivan.

I'll need to dig through my back issues to find it.



No kidding?  Don't remember that, will dig around for that Sullivan interview tonight.  I may very well have passed over that article, in that Air Force rifles are not my thing.
2/23/2005 9:26:33 AM EDT
[#2]
The SAR issue is February 2001.  However, I misremembered the exact topic of the article.  It covers a transitional 601 which was shipped with a mix of 601 and 602 parts.
2/23/2005 9:29:00 AM EDT
[#3]

Quoted:
The SAR issue is February 2001.  However, I misremembered the exact topic of the article.  It covers a transitional 601 which was shipped with a mix of 601 and 602 parts.



Wow, that sounds good, will dig it up soon as I get home.................

Edit:

Found it, wierd article.

2/26/2005 7:27:05 AM EDT
[#4]
Did any of the later 604's have chrome bores?  

Another question....Did any of the 604's with the 3 prong flash hider have a full mag fence, or were all these partial fences?  
2/26/2005 7:30:32 AM EDT
[#5]

Quoted:
Did any of the later 604's have chrome bores?  



Chrome bores came out in 1970/71.  So if the Air Force bought rifles after that they would have chrome bores.  Don't know when the last deliveries were made, but I have not seen one.
2/26/2005 3:05:55 PM EDT
[#6]
Here is a question for anyone who wants to try and answer it... What the hell is the Colt 649?

According to The Black Rifle, it is the GAU-5/A, however, is the 649 any different from the 610? The Black Rifle also says the 649 has a 14" OAL barrel, which would mean it has an XM177E2 moderator on it.
Most people who have been studying the XM177 series, knows the XM177/XM177E1 transitioned between a 3.5" and 4.5" moderator, which was then consequently used on the XM177E2.

Would this mean the earlier variant of the GAU-5/A with the XM177/XM177E1 moderator was considered the 610 and the later variant with the XM177E2 moderator was considered the 649?

Sammy
2/26/2005 4:30:57 PM EDT
[#7]
Photo 231 on page 233 in The Black Rifle is another one of those captions that appears to be in error.

The 610 is the GAU-5/A. 10" barrel. Same as the Army's XM177E1, except without forward assist.
Either the 630 or the 649 were the GAU-5/A/A. The 630 and 649 seem to be identical. They have a 11.5" barrel. Same as the Army's XM177E2, except without forward assist.
2/26/2005 4:58:32 PM EDT
[#8]
Thank you pettifogger.

I am almost positive the Colt 630 was the GAU-5/A/A. I am almost inclined to believe the 649 doesn't exist and/or is a model that is completely different than we know. Just to let you know, I have had another source that believes the 649 is a GAU-5/P (not GUU-5/P) and is a Colt 653 without the forward assist. However, this information conflicts with the 654, unless the 649 is the US version while the 654 is the export version.

Sammy


Quoted:
Photo 231 on page 233 in The Black Rifle is another one of those captions that appears to be in error.

The 610 is the GAU-5/A. 10" barrel. Same as the Army's XM177E1, except without forward assist.
Either the 630 or the 649 were the GAU-5/A/A. The 630 and 649 seem to be identical. They have a 11.5" barrel. Same as the Army's XM177E2, except without forward assist.

2/26/2005 5:21:20 PM EDT
[#9]
Damn thats's a nice looking front sight base, especially for 60's-70's(?) technology.  I'll bet the ears are at the same height too.

I wish Bushmaster could do the same.  My BM FSB looks like it was cast in a high school shop class.

3/23/2005 6:29:44 PM EDT
[#10]
So to build up a "proper" 604 clone, I would want to have all the aluminum parts hardcoat anodized and then coated with Sandstrom 9A?
3/23/2005 7:13:33 PM EDT
[#11]
tag for later
4/13/2005 10:41:54 AM EDT
[#12]

Quoted:
How to tell if it's chrome lined


maybe if it says C MP CHROME BORE on the barrel just after the front site base?
4/13/2005 3:11:35 PM EDT
[#13]
Regarding the selector, did the M16A1 selector have the "notch" on the right-hand side like the A2 selector does (circled in red in the picture below), or was it smooth?

4/13/2005 5:31:47 PM EDT
[#14]

Quoted:
Regarding the selector, did the M16A1 selector have the "notch" on the right-hand side like the A2 selector does (circled in red in the picture below), or was it smooth?

www.fdn46and2.com/files/m4a1.jpg



The A1 did not have that "notch".
4/13/2005 5:34:05 PM EDT
[#15]

Quoted:

Quoted:
Regarding the selector, did the M16A1 selector have the "notch" on the right-hand side like the A2 selector does (circled in red in the picture below), or was it smooth?

www.fdn46and2.com/files/m4a1.jpg



The A1 did not have that "notch".



Thanks, Ekie.  Looks like I have another part to track down for my A1 clone build!
4/13/2005 9:10:37 PM EDT
[#16]
the notch is used with the offside FCG markings instituted on the M16A2.
4/13/2005 11:11:52 PM EDT
[#17]
Those offside safety markings are a comparatively new deal. I don't remember seeing them much before Operation Desert Storm-- late '80s, early '90s. Sure are handy, though. Anyone know the history there?

Sandstrom 9A is one of a series of solid-film-lube paints that were used for finishing and repair purposes. Several of the Milspec Sandstrom products were used; some bake on, others (mostly used for magazine refurbishment) are room-temp agents. Medium-grey GunKote is the right color and a hell of a lot more durable.

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