Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
4/16/2014 4:47:12 PM EDT
When putting a quad rail on your build can you put any length quad rail if your have the proper length gas tube or how does that work? You see some quad rails that are 9 inches and some are all the way out to the end of the barrel. How do I put a longer one on my AR if it has a 9 in one on it now. can you just buy a longer one and put it on?
4/16/2014 4:59:20 PM EDT
[#1]
If you have a low profile gas block, just buy a longer one and put it on.
4/16/2014 5:13:40 PM EDT
[#2]
Yep, as long as your rail will slip over the GB you are GTG.....the longer the better in most cases, more surface room equals better stability and shooting positions.  Just be careful the rail in question is congruous with your barrel nut.  Most use the standard nut, but companies like Troy (TRX) and Geissele use their own proprietary barrel nut.
4/17/2014 4:06:24 AM EDT
[#3]
What is a low profile gas block? I have a saber defense ar-15 with a Daniel defese quad rail but I  want to switch it out to something else.
4/17/2014 4:10:58 AM EDT
[#4]
chances are you already have a low pro...you should be GTG with any rail that is secured using standard ar 15 barrel nut.
4/17/2014 11:19:49 AM EDT
[#5]
If you are already using a milspec barrel nut I strongly suggest looking at the Fortis 9" and 12" keymod rails.
Good priced and looks sweet IMO.
AR Sponsor