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4 \) f6 I0 R2 `/ dLMT = LMT, Lauer(old), DS Arms, PWA, Eagle, Knights Armament, Barrett, Bushmaster (?)$ Z S! `* k* k, z0 H/ d8 f
CMT = Stag, RRA, High Standard, Noveske (old), Century (current), Global Tactical, CLE, S&W, MGI (1st batch), Wilson Tactical, (some?) Colt, Ratworx0 }8 i2 a. \1 C/ Y
LAR = Grizzly, Bushmaster (L Prefix), Ameetech, (?)DPMS, CMMG, Double Star, Fulton, Spike's Tactical, Noveske (new)0 o( |5 w- K0 P, |
MMS = Mega, Gunsmoke, Dalphon, POF (forged), Alexander Arms, Stinger, Spike's Tactical(old)
, e2 ~% i" b4 }! GJVP = Double Star, LRB
# W/ L# L' F5 G0 ?Olympic = Olypmic, SGW, Tromix, Palmetto, Dalphon, Frankford, (old) Century$ ]) _5 }' g4 u, Y* c v
Superior = Superior Arms, Lauer (current)
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2 ^7 K1 G' ?4 A, F0 I; @ºjºÞ§÷½è:Stainless Steel¸ò¤W¤F»Ìªº4150/4140¿û§÷¬O¥Ø«eºjºÞ¥Dn¨âºØ¿û§÷³W®æ,
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5 c, \7 U8 G/ ?$ x! ~¤U±³o¨Ç»s³y¼t¨Ï¥Î4150: Colt, LMT, Bushmaster and CMMG.
/ e3 a @ E! i* k @& p' v4140: Rock River Arms, Smith and Wesson
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4140
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Element - Weight % / [5 H7 f% |" m6 v7 y
C - 0.38-0.43
8 j. V0 q3 Y5 c7 B5 L' YMn - 0.75-1.00
9 w8 G4 l& B+ n- ?' ]0 r, J) B+ ]P - 0.035 (max)
6 g% Y5 R/ F% i# s, Y# OS - 0.04 (max) ; ]/ d1 U" W3 J8 ~& y% w
Si - 0.15-0.30
l g) B" V2 xCr - 0.80-1.10 . r' o+ u$ @, A N1 A
Mo - 0.15-0.25 0 @1 ^1 v& }2 W( W
Fe - remaining %5 m+ v: N) _# u& \9 j
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Element - Weight % ( }. \8 s9 x/ ]0 P5 u+ J+ S
C - 0.48-0.53
, G H& S6 M) mMn - 0.75-1.00
$ R& o! z+ E7 s! iP - 0.035 (max) & t! ?& f& L; K! L M9 |$ R
S - 0.04 (max)
* [* Y: u0 N& T8 WSi - 0.15-0.30
7 I" ^+ T0 [- ^. ^4 \/ TCr - 0.80-1.10 % }- F. E' D' R5 V' d! [
Mo - 0.15-0.25 . A: w4 V' @# n1 H3 ~* A* _. M
Fe - remaining %3 a0 u0 s* Z4 `9 v
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$ q7 q) J% R& @b. Áá»Ì¦bºjºÞ¤Îºj½£Chrome lining and bore:% P9 ~) i6 C2 |" O' _4 k
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" N8 N. S- L8 I; u$ J( YHard 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.
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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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µ²½×: get the barrel with chrome lined and bore if you can!. X) h9 V# m# H" u- f1 t
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