what is a complete upper for sail?
1 upper.....upper receiver by itself with or without parts installed
2 barreled upper......upper with barrel no bolt or charging handle
3 complete upper ...... upper with BCG and CH ready to pin on and run...
1 upper.....upper receiver by itself with or without parts installed
2 barreled upper......upper with barrel no bolt or charging handle
3 complete upper ...... upper with BCG and CH ready to pin on and run...