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Posted: 10/11/2004 1:56:10 PM EDT
Does the Colt M4 LE have the small or large hole for the hammer and trigger pins?
Link Posted: 10/11/2004 4:07:11 PM EDT
Large..
Link Posted: 10/11/2004 5:26:38 PM EDT
So what exactly is the difference? ie is there a preferred size hole in terms of compatibility?

Thanks
Link Posted: 10/11/2004 5:42:14 PM EDT
I already have a Class III Colt and would like to know if a registered autosear would fit in the gun and use M16 parts, which take the smaller pins?
Link Posted: 10/11/2004 5:42:17 PM EDT
Well, if you plan on using a DIAS, it will be tougher to find M16 control parts for big hole semi receivers. And there are a couple match triggers that aren't made in big hole form. Other than that, I can't really think of a problem with them.
Link Posted: 10/11/2004 5:59:45 PM EDT
A couple of "problems" with using a RDIAS in a LE Colt M4. First, the firecontrol pins are large, making it difficult to use M16 firecontrols. Second, the lower has a sear block which will need to be milled out in order to accept the RDIAS.
Link Posted: 10/11/2004 6:44:00 PM EDT
I read today that Colt stopped including the pinned-in sear block years ago. See the last post in this thread for my reference: www.ar15.com/forums/topic.html?b=3&f=118&t=205676&page=1#bottom
Link Posted: 10/12/2004 5:30:48 PM EDT
[Last Edit: 10/12/2004 5:35:46 PM EDT by M4Madness]

Originally Posted By El_Roto:
I read today that Colt stopped including the pinned-in sear block years ago. See the last post in this thread for my reference: www.ar15.com/forums/topic.html?b=3&f=118&t=205676&page=1#bottom



Yeah, but now they have a unmilled web left in place, which is essentially a sear block. "XM777" seems to have a good example of Colt mixing and matching stuff, as his LEO lower is unblocked. But 99% of them are.

Link Posted: 10/12/2004 5:34:05 PM EDT
Gotcha! I just saw the pictures of same.
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