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For: Madbull Noveske 7.25" RIS for M4/M16Product Information:
An excellent RIS system that is very light yet very solid. One peice construction means there is absolutely no wobble on your lower hand guard, especially if you're mounting a verticle grip or similar accessory. One problem with it is that the replacement delta ring is a little difficult to line up properly and make extremely tight so as to eliminate barrell wobble. I also suggest installing a RIS lock from madbull as it looks very tacticool, serves as a riser for optics, and prevents any twist off of the RIS. The only other gripe I have with this RIS is that there is a tiny pin in the back of the ris that prevents a gas tube from being installed. The pin is not important to the structure of the RIS, and I can't imagine why they put it in there except to be a bit annoying. So you can either leave out your gas tube when installing your front sight, or you can cut away the pin (not that hard). So really it is no big deal.
-Realistic looking (will give your M4 that "HK-416" look).
-No room for a battery so you may have to install a PEQ or rewire your gun. You may be able to fit a fuse in there if you're creative.
-Slight modification required if you want to have a gas tube connected to your front sight. Not really a big deal though, and very easy to correct.
-Slight difficulty getting a perfectly tight fit to prevent barrel wobble, but also this can be solved with some simple and inexpensive modifications.