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AR15.COM
8/7/2010 12:51:10 PM EDT
I've been looking at this rail system and was wondering if you could tell me how far it extends past the front sight base.

If you could measure from the FSB to the end of the rail that'd be great. I am interested in seeing if this will work with a 12.5" barrel and my reflex suppressor.

by my guesstimation, it should be approx. 3/4"

Thanks,

Tom
8/7/2010 1:41:24 PM EDT
[#1]
That rail system will end even with the front of the front sight post or a LP standard size gas block. You should have no problem mouting you suppressors
8/7/2010 5:55:49 PM EDT
[#2]
Quoted:
That rail system will end even with the front of the front sight post or a LP standard size gas block. You should have no problem mouting you suppressors


No way, there arn't any straight on pics from DDs website, but this shows it isn't even with the front sight post...

8/9/2010 5:18:15 AM EDT
[#3]
The M4 Rail 9.5 FSP measures 9.89".  If you were going to try this set up with a 10.5" barrel, you would run into some problems as the front of the rail system would extend past the shoulder at the back of the threads.  With a 12.5" barrel, you should have more than enough room to mount your can.
8/12/2010 7:31:58 AM EDT
[#4]
Thanks for the info, I still wasn't sure if it would fit or not though, so I just went with the 7.0, here's some pics...DD rail system, barrel, and rear sight.