From differents m1a site:
Brand Importer S/N Lotto1 Lotto2 Lotto3 Lotto4 Lotto5 = Production Lot? Lotto Format Month Year
Poly Technologies KFS 01965* 88 3 7 33 format = 88 37 33 March 1988
Poly Technologies KFS 00689* 88 03* 14 verified format March 1988
Poly Technologies KFS 0129X 88 19 5 should be 88 5 19? May 1988
Poly Technologies KFS 00797* 88 05* 27 verified format May 1988
Poly Technologies KFS 00827* 88 06* 3 verified format June 1988
Norinco CAI 91219 9 1 2 19 likely format 9 12 19 January 1989
Norinco CAI 91043 9 1 04* 3 January 1989
Norinco CAI 917XX 9 1 7 XX January 1989
Norinco CAI 91939 9 1 9 39 likely format 9 19 39 January 1989
Norinco CAI 91115 9 1 11 5 January 1989
Norinco CAI 92XX 9 2 XX February 1989
Norinco CAI 93046 9 3 4 6 likely format 9 34 6 March 1989
Norinco CAI 936XX 9 3 6 XX March 1989
Norinco CAI 93926 9 3 9 26 likely format 9 39 26 March 1989
Norinco CAI 942XX 9 4 2 XX April 1989
CAI 94210 9 4 2 10 likely format 9 42 10 April 1989
Norinco CAI 943XX 9 4 3 XX April 1989
Norinco CAI 95137 9 5 1 37 likely format 9 51 37 May 1989
Norinco CAI 95444 9 5 4 4 format = 9 54 44 May 1989
Norinco CAI 960XX 9 6 0X X June 1989
Norinco CAI 9633 9 6 3 3 June 1989
Norinco CAI 964XX 9 6 4 XX June 1989
Norinco CAI 96608 9 6 6 08* likely format 9 66 08 June 1989
Norinco CAI 96813 9 6 8 19 June 1989
Norinco CAI 96925 9 6 9 25 format = 9 69 25 June 1989
Norinco CAI 97120 presumed 9 7 1 20 format = 9 71 20 July 1989
Norinco CAI 9914 9 9 14 September 1989
Poly Technologies KFS 00896* 0 1990
Norinco CAI C0011X 5 13 27 1 May 1990
Norinco CAI C00106 5 18 41 1 May 1990
Norinco LAS Ltd. AL000292 5 27 31 verified format May 1990
Poly Technologies IDE USA 05435* 7 2 32 2 verified format July 1990
Poly Technologies IDE USA 06569* 8 3 21 2 verified format August 1990
Norinco CAI C003XX 8 12 37 2 August 1990
Poly Technologies KFS 02116* 0 8 40 26 August 1990
Poly Technologies KFS 02372* 0 8 44 42 verified format August 1990
Poly Technologies IDE USA 06873* 9 8 24 3 verified format September 1990
Poly Technologies IDE USA 090XX 9 16 16 3 January 1990
Poly Technologies IDE USA 0793X 9 17 43 3 January 1990
Poly Technologies IDE USA 0906X 0 9 20 6 4 September 1990
Poly Technologies IDE USA 08162* 10 8 19 3 verified format October 1990
Poly Technologies IDE USA 0830X 10 10 47 3 October 1990
Norinco CAI C00672 10 11 29 3 October 1990
Poly Technologies IDE USA 08660* 10 17 81 October 1990
Poly Technologies IDE USA 08656* 10 23 1 2 verified format October 1990
Poly Technologies IDE USA 09478* 12 1 32 6 format = 12 1 32 6 December 1990
Poly Technologies IDE USA 09647* 12 5 36 format = 12 5 36 December 1990
Poly Technologies IDE USA 09533* 12 5 40 6 format = 12 540 6 December 1990
Poly Technologies IDE USA 10345 12 15 32 6 format = 12 15 32 6 December 1990
Poly Technologies IDE USA 1154X 12 23 24 5 December 1990
Norinco CAI C0076X 1 3 3 45 4 March 1991
Norinco CAI 1815XX 1 8 15 XX August 1991
Norinco CAI 185132 1 8 51 32 verified format August 1991
Poly Technologies KFS 02729* 1 8 54 36 verified format August 1991
Norinco CAI 185928 1 8 59 28 likely format 1 8 59 28 August 1991
Norinco CAI 18639 1 8 63 9 likely format 1 8 63 9 August 1991
Poly Technologies IDE USA 1343X 3 3 11 11 7 verified format March 1993
Poly Technologies IDE USA 13526 3 3 23 11 7 verified format March 1993
Norinco CAI C01050 3 3 63 46 7 verified format March 1993
Poly Technologies IDE USA 14567 3 4 10 9 7 April 1993
Poly Technologies IDE USA 14584 3 4 19 37 7 verified format April 1993
Poly Technologies IDE USA 15704 3 4 24 28 7 format = 34 24 28 7 April 1993
Poly Technologies IDE USA 14621 3 4 38 7 7 verified format April 1993
Poly Technologies IDE USA 15079 3 4 43 8 7 April 1993
Poly Technologies IDE USA 0722X 3 5 10 24 7 May 1993
Poly Technologies IDE USA 17096 3 5 11 8 7 May 1993
Poly Technologies IDE USA 16558 3 5 12 35 7 May 1993
Poly Technologies IDE USA 17786 5 5 15 21 7 verified format May 1993
Poly Technologies IDE USA 17746 3 5 41 21 7 verified format May 1993
Norinco CAI C01366 3 5 48 16 7 verified format May 1993
Norinco CAI C01904 3 5 68 24 7 verified format May 1993
Norinco CAI C01873 3 6 8 9 8 June 1993
Poly Technologies IDE USA 18545 3 6 22 20 9 verified format June 1993
Poly Technologies IDE USA 195XX 3 6 36 41 9 June 1993
Poly Technologies IDE USA 21881 3 7 8 49 10 July 1993
Poly Technologies IDE USA 2209X 3 7 12 2 10 July 1993
Poly Technologies IDE USA 23645 3 7 16 38 10 July 1993
Poly Technologies IDE USA 21284 3 7 18 43 10 format = 37 18 43 10 July 1993
Poly Technologies IDE USA 21671 3 7 22 18 10 format = 37 22 18 10 July 1993
Norinco CJA 00400X 3 7 28 22 9 July 1993
Poly Technologies IDE USA 0292X 5 43 11 July 1993
Norinco CJA 000001* 3 7 35 43 11 format = 37 35 43 11 July 1993
Poly Technologies IDE USA 23114 3 7 57 4 12 format = 37 57 4 12 July 1993
Poly Technologies IDE USA 23947 3 8 2 49 13 verified format August 1993
Poly Technologies IDE USA 225XX 3 8 29 23 14 August 1993
Poly Technologies IDE USA 24190* 3 8 40 13 15 August 1993
Norinco CAI C08312 3 10 13 27 17 October 1993
Norinco CAI C07376 3 10 38 22 18 October 1993
Norinco CAI C07732 3 10 39 6 18 verified format October 1993
Norinco CAI C07688 3 10 62 29 18 verified format October 1993
Norinco CAI C07369 3 1 11 35 19 likely format 3 11 1 35 19 January 1993
Norinco CAI C09019 11 12 22 19 verified format November 1993
Norinco CJA 000450* 3 11 30 48 20 verified format November 1993
Norinco Canadian import 001265* 3 12 2 37 20 verified format December 1993
Norinco Canadian import 004399* 3 12 30 38 21 verified format December 1993
Norinco Canadian import 003720* 3 12 48 37 21 verified format December 1993
Norinco Canadian import 005778* 4 2 14 30 23 format = 42 14 30 23 February 1994
Norinco Marstar Canada 00###X 4 2 28 14 22 verified format February 1994
Norinco CJA 007610* 4 2 63 49 22 February 1994
Norinco Marstar Canada 0094XX 4 3 20 25 24 verified format March 1994
Norinco CJA 008827* 4 3 37 3 24 March 1994
Norinco Marstar Canada 00###X 4 3 42 22 24 verified format March 1994
Norinco CJA 0081XX 4 3 56 24 24 March 1994
Norinco Marstar Canada 0129XX 4 3 68 1 25 March 1994
Norinco Outdoor Arms 011441* 4 3 69 34 25 March 1994
Norinco Marstar Canada 01335X 4 3 79 35 25 March 1994
Norinco Canadian import 012903* 4 3 86 26 25 verified format March 1994
Norinco Canadian import 0119XX 4 3 88 28 25 March 1994
Norinco Marstar Canada 012687* 4 4 8 30 25 format = 44 8 30 25 April 1994
__________________
Different's M1A Site
Brand Importer S/N Lotto1 Lotto2 Lotto3 Lotto4 Lotto5 = Production Lot? Lotto Format Month Year
Poly Technologies KFS 01965* 88 3 7 33 format = 88 37 33 March 1988
Poly Technologies KFS 00689* 88 03* 14 verified format March 1988
Poly Technologies KFS 0129X 88 19 5 should be 88 5 19? May 1988
Poly Technologies KFS 00797* 88 05* 27 verified format May 1988
Poly Technologies KFS 00827* 88 06* 3 verified format June 1988
Norinco CAI 91219 9 1 2 19 likely format 9 12 19 January 1989
Norinco CAI 91043 9 1 04* 3 January 1989
Norinco CAI 917XX 9 1 7 XX January 1989
Norinco CAI 91939 9 1 9 39 likely format 9 19 39 January 1989
Norinco CAI 91115 9 1 11 5 January 1989
Norinco CAI 92XX 9 2 XX February 1989
Norinco CAI 93046 9 3 4 6 likely format 9 34 6 March 1989
Norinco CAI 936XX 9 3 6 XX March 1989
Norinco CAI 93926 9 3 9 26 likely format 9 39 26 March 1989
Norinco CAI 942XX 9 4 2 XX April 1989
CAI 94210 9 4 2 10 likely format 9 42 10 April 1989
Norinco CAI 943XX 9 4 3 XX April 1989
Norinco CAI 95137 9 5 1 37 likely format 9 51 37 May 1989
Norinco CAI 95444 9 5 4 4 format = 9 54 44 May 1989
Norinco CAI 960XX 9 6 0X X June 1989
Norinco CAI 9633 9 6 3 3 June 1989
Norinco CAI 964XX 9 6 4 XX June 1989
Norinco CAI 96608 9 6 6 08* likely format 9 66 08 June 1989
Norinco CAI 96813 9 6 8 19 June 1989
Norinco CAI 96925 9 6 9 25 format = 9 69 25 June 1989
Norinco CAI 97120 presumed 9 7 1 20 format = 9 71 20 July 1989
Norinco CAI 9914 9 9 14 September 1989
Poly Technologies KFS 00896* 0 1990
Norinco CAI C0011X 5 13 27 1 May 1990
Norinco CAI C00106 5 18 41 1 May 1990
Norinco LAS Ltd. AL000292 5 27 31 verified format May 1990
Poly Technologies IDE USA 05435* 7 2 32 2 verified format July 1990
Poly Technologies IDE USA 06569* 8 3 21 2 verified format August 1990
Norinco CAI C003XX 8 12 37 2 August 1990
Poly Technologies KFS 02116* 0 8 40 26 August 1990
Poly Technologies KFS 02372* 0 8 44 42 verified format August 1990
Poly Technologies IDE USA 06873* 9 8 24 3 verified format September 1990
Poly Technologies IDE USA 090XX 9 16 16 3 January 1990
Poly Technologies IDE USA 0793X 9 17 43 3 January 1990
Poly Technologies IDE USA 0906X 0 9 20 6 4 September 1990
Poly Technologies IDE USA 08162* 10 8 19 3 verified format October 1990
Poly Technologies IDE USA 0830X 10 10 47 3 October 1990
Norinco CAI C00672 10 11 29 3 October 1990
Poly Technologies IDE USA 08660* 10 17 81 October 1990
Poly Technologies IDE USA 08656* 10 23 1 2 verified format October 1990
Poly Technologies IDE USA 09478* 12 1 32 6 format = 12 1 32 6 December 1990
Poly Technologies IDE USA 09647* 12 5 36 format = 12 5 36 December 1990
Poly Technologies IDE USA 09533* 12 5 40 6 format = 12 540 6 December 1990
Poly Technologies IDE USA 10345 12 15 32 6 format = 12 15 32 6 December 1990
Poly Technologies IDE USA 1154X 12 23 24 5 December 1990
Norinco CAI C0076X 1 3 3 45 4 March 1991
Norinco CAI 1815XX 1 8 15 XX August 1991
Norinco CAI 185132 1 8 51 32 verified format August 1991
Poly Technologies KFS 02729* 1 8 54 36 verified format August 1991
Norinco CAI 185928 1 8 59 28 likely format 1 8 59 28 August 1991
Norinco CAI 18639 1 8 63 9 likely format 1 8 63 9 August 1991
Poly Technologies IDE USA 1343X 3 3 11 11 7 verified format March 1993
Poly Technologies IDE USA 13526 3 3 23 11 7 verified format March 1993
Norinco CAI C01050 3 3 63 46 7 verified format March 1993
Poly Technologies IDE USA 14567 3 4 10 9 7 April 1993
Poly Technologies IDE USA 14584 3 4 19 37 7 verified format April 1993
Poly Technologies IDE USA 15704 3 4 24 28 7 format = 34 24 28 7 April 1993
Poly Technologies IDE USA 14621 3 4 38 7 7 verified format April 1993
Poly Technologies IDE USA 15079 3 4 43 8 7 April 1993
Poly Technologies IDE USA 0722X 3 5 10 24 7 May 1993
Poly Technologies IDE USA 17096 3 5 11 8 7 May 1993
Poly Technologies IDE USA 16558 3 5 12 35 7 May 1993
Poly Technologies IDE USA 17786 5 5 15 21 7 verified format May 1993
Poly Technologies IDE USA 17746 3 5 41 21 7 verified format May 1993
Norinco CAI C01366 3 5 48 16 7 verified format May 1993
Norinco CAI C01904 3 5 68 24 7 verified format May 1993
Norinco CAI C01873 3 6 8 9 8 June 1993
Poly Technologies IDE USA 18545 3 6 22 20 9 verified format June 1993
Poly Technologies IDE USA 195XX 3 6 36 41 9 June 1993
Poly Technologies IDE USA 21881 3 7 8 49 10 July 1993
Poly Technologies IDE USA 2209X 3 7 12 2 10 July 1993
Poly Technologies IDE USA 23645 3 7 16 38 10 July 1993
Poly Technologies IDE USA 21284 3 7 18 43 10 format = 37 18 43 10 July 1993
Poly Technologies IDE USA 21671 3 7 22 18 10 format = 37 22 18 10 July 1993
Norinco CJA 00400X 3 7 28 22 9 July 1993
Poly Technologies IDE USA 0292X 5 43 11 July 1993
Norinco CJA 000001* 3 7 35 43 11 format = 37 35 43 11 July 1993
Poly Technologies IDE USA 23114 3 7 57 4 12 format = 37 57 4 12 July 1993
Poly Technologies IDE USA 23947 3 8 2 49 13 verified format August 1993
Poly Technologies IDE USA 225XX 3 8 29 23 14 August 1993
Poly Technologies IDE USA 24190* 3 8 40 13 15 August 1993
Norinco CAI C08312 3 10 13 27 17 October 1993
Norinco CAI C07376 3 10 38 22 18 October 1993
Norinco CAI C07732 3 10 39 6 18 verified format October 1993
Norinco CAI C07688 3 10 62 29 18 verified format October 1993
Norinco CAI C07369 3 1 11 35 19 likely format 3 11 1 35 19 January 1993
Norinco CAI C09019 11 12 22 19 verified format November 1993
Norinco CJA 000450* 3 11 30 48 20 verified format November 1993
Norinco Canadian import 001265* 3 12 2 37 20 verified format December 1993
Norinco Canadian import 004399* 3 12 30 38 21 verified format December 1993
Norinco Canadian import 003720* 3 12 48 37 21 verified format December 1993
Norinco Canadian import 005778* 4 2 14 30 23 format = 42 14 30 23 February 1994
Norinco Marstar Canada 00###X 4 2 28 14 22 verified format February 1994
Norinco CJA 007610* 4 2 63 49 22 February 1994
Norinco Marstar Canada 0094XX 4 3 20 25 24 verified format March 1994
Norinco CJA 008827* 4 3 37 3 24 March 1994
Norinco Marstar Canada 00###X 4 3 42 22 24 verified format March 1994
Norinco CJA 0081XX 4 3 56 24 24 March 1994
Norinco Marstar Canada 0129XX 4 3 68 1 25 March 1994
Norinco Outdoor Arms 011441* 4 3 69 34 25 March 1994
Norinco Marstar Canada 01335X 4 3 79 35 25 March 1994
Norinco Canadian import 012903* 4 3 86 26 25 verified format March 1994
Norinco Canadian import 0119XX 4 3 88 28 25 March 1994
Norinco Marstar Canada 012687* 4 4 8 30 25 format = 44 8 30 25 April 1994
__________________
Different's M1A Site