One of the upgrades that the Troy Alpha rail takes advantage of is it’s new low profile locking mechanism. This locking system increases the strength and stability of the system, resulting in increased performance to the end user.
When the Troy Alpha Rail was first released, it brought with it a new concept in AR-15 hand guards. The rail has evolved past the quad rails of yester-year. The Alpha rail offers the user a slim diameter that is smooth and comfortable to hold on to. The handguard has several ventilation holes that allow for rapid heat dispersion and also serve as a mounting location for (included) Picatinny rail sections. With this feature, you can put Picatinny rail sections where you need then and avoid the excess size and weight of having a full length quad rail set up.
The AR-15 hand guard is made from aircraft grade aluminum and also has some stainless steel components. The aluminum is finished in a Mil-Spec hard coat anodizing for increase wear and corrosion resistance.
For ease of installation, this hand guard will install on a (not included) standard AR-15/M16 barrel nut