Posted: 8/7/2010 12:51:10 PM EDT
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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 |
| 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. |





