The King Arms M4/M16 FSG1 Style Pistol Grip is a soft, comfortable pistol grip designed for long periods of gripping. Originally from the FSG1, you can now have the same comfort and feel on your M4/M16.
Manufacturer: King Arms
I bought this grip about 5 months ago, and it is very nice. It is perfect for someone with big hands, and gives you that extra comfort that you always want. When lying prone, you will see a noticable difference in stabability compared to the motor grips that are found on the M4 series. I would usually have to place my free hand under my grip to provide the extra support.
Some of my concerns are this; The motor has a tendancy to get very hot, much more so than with the stock grip. I also noticed that since you can't adjust the motor I have gotten a lot of jams since installing this. Although this is probably user error. But one thing I noticed is that there is only one screw to hold the bottom on, so it is always loose, but duct tape fixes that.
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