RETRO BLACK RIFLE - RETRO 20" BARREL BUILD GUIDE
If you want to start with a 20" barrel, here is what would be the correct rifle to
build with it:
M1 or no markings 14:1
These were made 1959-1963
They are correct for 601
VP
These were made in 1963.
They are correct for late 601 or early 602
MVP
These were made 1964-1966
They are correct for mid to late 602, early 603 XM16E1, very early 604, or 605 (if
cut down to 15")
MP
These were made 1966-1967
They are correct for late 603 XM16E1, very early 603 M16A1, or early 604
MPC
These were made 1967-1969
They are correct for early 603 M16A1, or early 604
CMPC
These were made 1969-1971
They are correct for 603 M16A1 or 604
CMPB
These were made 1971-1974
They are correct for 603 M16A1 or 604
CMP Chrome Bore
These were made 1974-1982
They are correct for late 603 M16A1 or 604