reasonably priced, high-quality spare sight
  
 light but very durable collapsible steel sight
  
 treated with Melonite QPQ™ coating for maximum durability
  
 mounted on a 1913 Picatinny rail
  
 designed for the AR15/M16 platform
  
 side updates easily adjustable, no tools required
  
 Made in USA
  
 weight: 51g