Choosing The Correct .308 Handguard

Some people ask 'What is the difference between an Armalite compatible .308 upper receiver and a DPMS compatible upper receiver?"  They do differ slightly, and  the type of upper receiver you have on your rifle is going to determine which handguard you need.  

• Armalite pattern .308 uppers have an angled corner where the upper meets the lower.
• DPMS pattern .308 uppers have a rounded rear where the upper meets the lower.  There are two different heights available.
  
  

• DPMS Low Profile upper receivers have a flat-top rail that measues approximately .150" high.
• DPMS High Profile upper receivers have a flat top rail that measures approximately .210" high.
  
  

Please do not order a handguard unless you are absolutey certain about the pattern and tang height of your upper receiver.