Hand guards will change depending on which you decide to make. The URG-I For illustration utilizes a geissele mk16 9″ handguard which only seem to be readily available on their own newly launched URG-I higher receivers. Over the still left within the image listed here we are able to see https://kacrail74062.blogs100.com/27034813/the-knights-armament-m4-quad-rail-diaries