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7 Q/ a! |! X+ u) |©Z¥Õ»¡,¦b¶i¤@¨B¬ã¨s«e,§Ú¥H¬°Colt¬O°ß¤@°µARªº¤u¼t,§Ú¥H¬°©Ò¦³ªºM16¨t¦Cªººj¤W±³£À³¸Ó¦³¤@¤Ç°¨¤~¹ï. ¨ä¹ê¥«±¦³«D±`¦hªºµP¤l¦L¦bAR/M16¨t¦Cªº¾÷§X¤W, ¦ý³o¬O¤£¬O¥Nªí¦³«Ü¦h¤u¼t©O?¤]¤£ºÉµM,´N¹³¥xÆW¥N¤uªº°ª¬ì§Þ²£·~¤@¼Ë,ÁöµM»\¤W¥hªºmark¤£¦P,¦ý¬O¥i¯à¬O¦P¤@¶¡¤u¼t°µ¥X¨Óªº.: V+ z; }2 U. O2 |) J+ G
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6 W* U. o$ i4 Q9 qLMT = LMT, Lauer(old), DS Arms, PWA, Eagle, Knights Armament, Barrett, Bushmaster (?)
+ i7 X( Y# z( ~4 s/ D9 wCMT = Stag, RRA, High Standard, Noveske (old), Century (current), Global Tactical, CLE, S&W, MGI (1st batch), Wilson Tactical, (some?) Colt, Ratworx
* {9 U- c& t4 s8 O ZLAR = Grizzly, Bushmaster (L Prefix), Ameetech, (?)DPMS, CMMG, Double Star, Fulton, Spike's Tactical, Noveske (new)
w( L) ]% T5 W: G% I7 h: l: YMMS = Mega, Gunsmoke, Dalphon, POF (forged), Alexander Arms, Stinger, Spike's Tactical(old)
; q/ e; A2 u( V) H! D9 lJVP = Double Star, LRB9 ~' x$ p K5 j
Olympic = Olypmic, SGW, Tromix, Palmetto, Dalphon, Frankford, (old) Century
1 c6 {- Z3 L9 Z! }7 N$ \- {4 E! U. x' F5 ?7 USuperior = Superior Arms, Lauer (current)1 p6 N8 U8 V2 _; f" b: h+ N8 O9 ^
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1 G: B% H$ k% I Y. P/ V/ KºjºÞ* ~ }$ d) X+ q' B& z3 g1 D
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f. ºj¾÷Á`¦¨(bolt carrier group)
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ºjºÞ§÷½è:Stainless Steel¸ò¤W¤F»Ìªº4150/4140¿û§÷¬O¥Ø«eºjºÞ¥Dn¨âºØ¿û§÷³W®æ,
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! k5 S2 G8 {4 Y* r2 a¤U±³o¨Ç»s³y¼t¨Ï¥Î4150: Colt, LMT, Bushmaster and CMMG.: V; n! Z6 P4 t8 [( u' B/ Y2 A
4140: Rock River Arms, Smith and Wesson
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Element - Weight % " p6 q: N$ y/ j* J
C - 0.38-0.43 1 i; C5 l/ |$ E- j6 W2 g) s
Mn - 0.75-1.00 ! K& y2 r1 H! @' o1 l4 Q2 N# c5 C
P - 0.035 (max) & u6 v3 h6 ~1 W# S9 w- m- V
S - 0.04 (max)
3 {) A$ [' G0 {$ ^2 U0 t5 F5 {Si - 0.15-0.30 ) V8 w% Y: f3 w1 D3 [! O# S
Cr - 0.80-1.10 . F' P* ]8 h7 T1 p7 ~; Y9 R+ N
Mo - 0.15-0.25 * o1 ?+ z+ `1 j2 t
Fe - remaining %0 K. c; D0 ~0 A" P% U( s! ?
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41504 y }# Q4 L+ t" M0 M
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Element - Weight %
2 Y* H* K' c( c& }* lC - 0.48-0.53
+ `+ }! w5 |' m) R UMn - 0.75-1.00
1 b4 `( z6 O5 }9 u8 cP - 0.035 (max)
+ H) }6 b1 g8 e( p" ?S - 0.04 (max)
& G, O% U9 w( X: QSi - 0.15-0.30
/ V& E/ u- p( x& y+ ]; p# MCr - 0.80-1.10 / B a# R3 d, [" J: O4 n O9 N
Mo - 0.15-0.25
$ o- R3 d2 m8 |( ~& K' F( R2 OFe - remaining %
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b. Áá»Ì¦bºjºÞ¤Îºj½£Chrome lining and bore:8 ^7 l9 N1 @+ {* l( {- K! K
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Hard coating chrome:¦bºjºÞ¤Îºj½£¤º¤W¤@¼h»Ì, ¥i¥H¨¾¤î¼uÃÄ¿U¿N«áªº²¸¤Æª«ù×»kºjºÞ¤Îºj½£, ¤]¥i¥HÅý®gÀ»§¹«á¤£¥²¥ß¨è²M¼äºjºÞ,(°²³]ª¬ªp¤£¤¹³\) ¦A¥[¤W»Ì¥i¥HÅýºj½£¤ñ¿û½èªººj½£§ó¬°·Æ·È,©Ò¥H¥i¥HÅý¤l¼u¤W½£¶¶¤@ÂI, ¶i¤@¨B´î¤Ö¥d¼u©Î¬OµLªk°h´ßªº±¡ªpµo¥Í.( h: N0 \* P: f: C, Q
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William Davis, Former Chief, Small Arms Branch recalled that, ¡§The principle problem was a failure to chrome plate the chamber. That was the cause of the serious malfunctions that caused the controversy in Vietnam.¡¨
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# J S- E6 s5 Y1 B& Fµ²½×: get the barrel with chrome lined and bore if you can!
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