Folks this is a vague list and I have had these numbers for quite some time and would recommend you call the manufacturer to get 100% accuracy on your Rifle.
If anyone else has more info please send it to me

Bushmaster Pre-Ban
Below L051000 - Pre-Ban Rifles and some Pre-Ban lowers.
L051001-L063000 - Pre-Ban Assembled Rifles and Pre-Ban Lowers


Colt Pre-Ban
Year Serial Number Range
1963 SP00001-SP00023**
1964 SP00101 ~ SP02500
1965 SP02501 ~ SP05599
1966 SP05600 ~ SP08249
1967 SP08250 ~ SP10749
1968 SP10750 ~ SP13999
1969 SP14000~ SP14653
1970 SP15001~ SP15473
1971 SP16001 ~ SP19400
1972 SP19401 ~ SP24000
1973 SP24201 ~ SP32600
1974 SP32601 ~ SP43800
1975 SP43801 ~ SP55300
1976 SP55301 ~ SP67650
1977 SP67651 ~ SP83339
1978 SP83400 ~ SP

CC001616 and Below
CH019500 and Below

GC018500 and Below

LH011326 and Below

MH086020 and Below

NL004800 and Below

SL027246 and Below
SP360200 and Below
ST038100 and Below

TA10100 and Below

BD000134 and Below


DPMS
Below 10300 - Pre-Ban.
Most lowers were cast. Black and Gray in color.


Olympic Arms
SN Range
0001 ~ 0004
1000 ~ 8845

X1001 ~ X2987
X2988 ~ X3484
X2988 ~ X3484

P0001A ~P0588A

Z0001 ~ Z2002
Z2003 ~ Z3955
Z3956 ~ Z6007
Z6008 ~ Z8018
Z8019 ~ Z9985
Z9986 ~ Z9999

W1001 ~ W2957

V0001 ~ V0716

NAMV1 ~ NAMV100

USMC1 ~ USMC320

U1001 ~ U1597

F1006 ~ F3000
F3001 ~ F5052
F5053 ~ F9109
F9110 ~ F9999

T1001 ~ T2119
T2120 ~ T3758
T3759 ~ T7480
T7481 ~ T9532
T9533 ~ T9999

AA001 ~ AA1000
AA1001 ~AA2297
AA2298 ~AA2425

GG1000 ~ GG1009

OA1001D ~ OA1039D
OAD1040 ~ OAD1067
OAS1042 ~ OAS1138

AC10000 ~ AC10058

LL0001 ~ LL0267

BL1000 ~ BL2784
BL2785 ~ BL4814
BL4815 ~ BL6861
BL6862 ~ BL8799
BL8800 ~ BL9533
BS0001 ~ BS0699
BS0700 ~ BS0825

NF0001 ~ NF1999
NF2000 ~ NF3999
NF4000 ~ NF4055

94NF1000 ~ 95NF2587

UK0001 ~ UK0448

E1001 ~ E2099
E2100 ~ E2290

CA0001 ~ CA0690

H1300 ~ H3299
H3300 ~ H3354

TBOR1791 ~ TBOR1991

V1000 ~ V1499
V1500 ~ V2755


Ruger
Pre-Ban Rifles
10/22 235-10632*
Mini-14 188-66901 and
Mini-30 189-52528 and lower