Stern Defense RAB-AD Features The Stern Defense RAB-AD Pic Rail adapter lets a shooter detach their buttstock or pistol brace in seconds simply by pulling the bottom release tab and twisting counter-clockwise 30 degrees to separate the two halves. Re-attaching is just as fast requiring only alignment and a clockwise twist until the steel locking mechanism automatically secures the connection. Three steel ball detents combine with a locking bolt to ensure a stable secure lockup that will not loosen or rattle during normal use. This no-modification design means shooters can add the capability without permanently altering their firearm. Built from 7075 aluminum with steel internals the RAB-AD Pic Rail adapter weighs just 3.7 ounces while still delivering the strength needed for repeated field use. A hard coat anodized finish protects the aluminum body against wear making the adapter suitable for tactical setups or frequent travel. Designed machined and assembled entirely in the USA the RAB-AD Pic Rail adapter adds 1.46 inches to the overall length of pull once installed. Shooters who need to reduce their firearm s footprint for transport or storage will find this adapter a fast dependable way to do it. Stern Defense RAB-AD Specifications Manufacturer: Stern Defense Model: RAB-AD Color: Black Material: Aluminum / Steel Finish: Anodized Weight: 3.70 oz Compatible Hosts: AR-15 Available At: GrabAGun