This Gatekeeper comes with Pure Copper Gates, Scales and  cores.  Exposed hardware is all brass and the spring is stainless steel.  Threaded brass rod is visible through both core windows. 
 
Finish on these is stone tumbled and then hand rubbed to glossy at the high points.  Only 9 are available.
 
Carabiners sold as practical personal accessories are a dime-a-dozen, and like the majority of mainstream items, many are designed to fail.
 
The Gatekeeper is a semi custom/handmade item.  Built in layers, it is unlike any other carabiner available. The main assembly consists of 30 pieces machined and cut to strict tolerances, then fastened together with 26 countersunk brass machine screws. The final result is a solid piece of personal hardware that looks great and is almost impossible to put down.