The new Parallax Tactical FFSSR Rails are sort of like a hybrid between the popular slide sided, tube shaped rails that are so prevalent right now and a traditional 4 rails hand guard. They feature a full length top rail with shorter rail sections at the 3, 6, and 9 o’clock positions at the front and rear of the rail. It also features QD sling swivel sockets on the front and rear of each side.
Unlike many of the slick sided tubular hand guards on the market, the Parallax Tactical Rail is very overbuilt. It is still slim and fairly lightweight (varies by length) but it is built to be more durable than most of the slim tubular hand guards on the market.
The Parallax Tactical Rails attach to the upper receiver via a proprietary barrel nut and are compatible with Magpul accessories.