1st marine division - special report - type c - winter ...€¦ · 1st marine division - special...

1ST MARINE DIVISION - SPECIAL REPORT - TYPE C - WINTER TRIGGER DEVICE - 5 DECEMBER 1951

Korean War

Korean War Project Record: USMC-1191

CD: 15

United States Marine Corps History Division

Quantico, Virginia

Records: United States Marine Corps

Unit Name: 1st Marine Division

Depository: National Archives and Records Administration

Location: College Park, Maryland

Editor: Hal Barker

Korean War Project

P.O. Box 180190

Dallas, TX 75218-0190

http://www.koreanwar.org

Korean War Project USMC-00123668

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DEC 1 s 1SS/ F'IRS'.: L:;JCF:SIJ~!Et\T on CJ lst ga:rJiv (Reinf) Fl·iF ..Lvr aer 60948 of 0 .Jec 1951

From: Com n$lndinc; General 1 Fleet ::a.rlne co~n:nR11d~ t of the ~-1:al"'ine Corp~.

Force .. l?nci fie-. .

::> ubj: Type nc II He port Win t<!r Trigger Device for U, S, Carbine, Caliber ,;so, H-2 and u. 5. Rlfle H-1, s ubmi I' ei on of

l. Forwarded.

2~ Th1L r~port 1e considered to be mgterl€1 of h1~tor1cal 1n~~1'eBt rela.t:tve to the development of the winter tr1£,ger :!evice;;

3, Reference (a) was forwarded by my nret endorsement aerial 2;571C of 30 November 1951,

By lirection

~opy to: CG • ls ·~hal'J1 v

DECLASSIFIED

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.. Headquarters

let Hari.ne Division (Reinfi Fl•1b' c/o FPO San Francisco, California

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From: Commc.nC.iP..g General To: Gommende.nt of the l-1a.rine Corps Via: Comm~:mding General, Fleet Marine Force, Pacific

Subj: 'I'ype "C'i Report '.•/inter Trigger Device for U. s.

llef:

Carbine, Caliber .30, H-2 and u. s. Rifle M-1, submission of

(a) CG, lstMarDiv ltr ser 37.-193 of 21I;:ov5l

r.~ncl: (1) Copy of Subject Report

1. Enclosure (1) is submitted herewith for the historical record. Comnlete technical drawings, data, and information luwe been fo":PI·rardod under refer•ence { ai for further evaluation end development by a cognizant agency.

~l. J, . ·,·iHAL !NG Acting

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r-_ ~l:Jlc 2.n "'cJ1c s:tcJc oP ~~:·Le heo.c1 of a C8})SC1'C1-.·. tb.ree.C.in:---~ t!-~e

c:·1c. ·_) :.: ~c~ ~::; cJ.rlll c teel, ccreuinc them ·to~etl:Cr, insertir::_; the cc~·~ccrc·u tl:rou~-~-:1 ~!1e ::ole, t:.r:c1 securin~~ it 1·.ri. th a 11ut. The Pce.l' -~· tl":.c trlc::_:er cuo~ .. cl is tG.)€Jl''00.; in orC~er to ·)'J..,ese~1t

o. sr~·-l::.rc .~~:loul(.;:;r fer nc:cur~:.:-1;_~ .. ~l e ~l ,t, 1.:ull._.e u:-1.- .e(i u:-... s:1ers ~.:,· .. c ..,:J -:.~c :!luOl"tod. fJ..t21oU;~)l d.r:;_ll steel i:. st:_ .. c~1:::_;, it lo to .. ~· ,Jr_ -c · _G ::.-c..:.- r:~ ... a~J:~_;J.~ ~--:~~c"'- ·Lcnc1::..i1."_ reQ~1irc-:::.. T::o 2"Jiece us-::cl :>:-.:.· ;-_-:;-:·-~:::.:\_; t>:e ~-Jo(.:l.G]~ ~::;:r-.-:<:.c -::r::ils ~::~~r;_.:..1~:.' tc :_)en~} ~-7. :-',n '!::hn.t c1:2 '"~:,~ ~:~::.:~ .. e. rest ~)n ~~-~c tJ')_·tcser~ A cyl~:;.C'.l"'icr-... ~~ieee -'Jf ctnc:~ ·ir:"'c:·-""1 t-:-'"·~. "br:··~. cl -~·.t r:'~<~:;t r:1:~lef) tc.: "'(;_c CL1(i_ 0~ t!1e rocJ. r.0 J-' ·--" c~.n---vc_(l_ s:~: ... ··~,_cc -::-(:.:_-,_"'_<..~ E>.ct nc;a121st tl:o ~2~1-=L·er.

-·.)-

DECLASSE FEED

i


. ' -~

,..-~

:J ~~--J. c:_~ ~c ·.

--· !!

DECLA_SSIFTF.D

..

... ~~c s:.:i sc .... ~.ce .:c cev::. co " ; -. "f'l r-, .- __ .... -·- v

-'·' ·c r.~ ",/""",lTc~ '_,. ·-' >! ,,

::-...·c~:_c

·o:- t> .. 0.1•

--- ~-. .:.. .._,;_.;.

fer its

,--, .~. ,----. ,.._ ..... ~ . ~''"' . _ _., -~ .... , ..-,,.-, , .. _...,

.;.. .~ • .:.--~-·..:•.!.~-~~

~ ... cturn

DECLA.SSIFIED

..

••·• -j ~ .. ,., /: -- ... .!. ...... ·~-

.._. __ f_' ,_ .. -J_

cc·n-


; f'O'UI •fl-. ... 'J.

DECLASSIFIED

(.i?PB/~~1~ ~ l f)

.P·-1. ... "

~!" ~'_i._

DEC 1 s

--cu;· rlllhli.III', -•tlllf.• cal., ~ l<tet ''"'r1n0!! li'oroe' P!'!o!f!o ~nr:i·"i•_~:_n,:U~,t of t'<te tf:SLfiOft Crnw-.-;v

-~~ H} "~'' :\H))cJl't ,~I r\tl-'lr'" 'i1 rir;:_:~r' ;)1!""?,1.0f; for IJ~ ~ .. > ---..u.!..~.i8~ ~_;n.JJ.ber .:)J~ ~-"~ .~n"~- U. t1. Hif~le ~~-l. ~-u·Om1as1.;..\n of

~... •rn1a report 1e oonsidered to be material ct h1ato:r1oal inttorest relative to the dev~lorm<l!nt 01' th~ 1or!nter tr1gr,er ;l--~ .. --t,JW V J.VC1..,

eo,, io: CG, bliiarDi•

tiret endorsement

!!)!l!R'f !! • YE!!!! i7 <iirtoUon

DECLASSIFIED

\

ner1e.l


DECLASSIFIED

fl:,f;l'1' .,'llO!itl~t!ENT on Q(t lH1;Mit.rP1v (Rei!!f) fMf' ltr c;e:r 60~48 r:f :';: Dec 1.!H1!.

:··r'Ot"1: nnfY'!!')I"'~!-t' nc r:·~notr~l .. Fleet 11!tr-ine -,·orarJ, Pao1:!"'1o To: Gr .. ,.~,- t n(lrnt ~!.' t)Je tfer-inP Cnro.:

8ubJ: .-,_ ·-~ 41 ~~~~ 1:f--,\t.rtt. ·.:~ ntf-''1, Tr!.I:;;·c:"' .:JCvi-of! fnr H. H, CF?'b~_nn~ {)pl~tbfl~ ~~0 1 N-Y. llncl ll~ :1= Hifl,~ M-l, :ubrr·ie}]l,~,.n of'

-, ,1, ..

~=. Th1& report is conuidar-&(1 to bo nater1al of h1 sto:ricgl 1ntereet r~lnt1n to the develcrMent "'f ths Y.!nter trigger clevice,

;;.. Fiafar<tnco (a) 'Was for\utrr..lttd oy r:y !"1rat endor&ement oer1&l 23?10 or 30 November l9Bl.

Copy to; CG. lo~MarJi.v

ROB~RT F.. v:;NN By direction

DECU·.SSIFIED


Frail: Tc: V!a:

DECLASSuiED

B•a4q-a:ar'tv~;__ ._ let Mar!.ne D!.t"1e!M (H•!!"d'J n«r

c/o FPO llan i'r~~mtillliO, Cali:i'o:m.i&

........ ~~·" .. ·~ .............. . :..,.< \ll':;,,~ <'.i,liJ.U.rio.&.il) Giin&ral.

ot the Mar1ne Oorpe

Kl 5e:f'i

jcmroand.ant Com.rs\Ji!lt"'J'"~ .. ~ -- ...-----------...,.-, tl-!!n!ll"l'l, ll"l.eet liariM Foroe, 1'aaU'io

>L.JJJ'~1 uc·• Nvpurt \~!in "tar ~'ri;ga.~ ll=Yl~~ --~J.'~_U.! S. ·,a~b~ne, Os.l~ber ~30j 14.2 and u. ~~ RJ.n• ~'-;L, sucrrl:L581on or

(l) Copy of

60948

1. l:..'l~oeru ... ~ (l) 1e eUbm!tted M:rtw1th top me historical PeMJ!'dJIII Comnlete teohnlosi Orawi.Nle. _ U.taJ a,qd S.nt'(;ii~Hitton tJ.a~-$ t~e.n f·o~,;ar(~.ud Uiil.\er :rerer-wnoi (G,) tor :t-"~~~' ev=lu.,~t!on c.r.d develcp:r!on't 'b;- a COt;~n1~ent 83••:•

*~• :. i'i~-iALIIQ

Ao'i:t;

DECLASSTVIED


DECLASSuiED

4.1/'l/owb 1.i Hov 1&51

e.. 'i"n• exV.e aold na~ uatill'i.elto.O rieinlr ~llll vlDkrr.lo~o.=. vaua~ ti'ii&_,:1._. aa4 :~-.·r..,1zc.~ ...;ag ~,._ t~Jk. !n a~4!tioa to ot.~ .b&.~P=• 1' .-...= a.tf4-=G.t to fi.J:oe !!II!!Al.l ..-. wnn• nP'11¥! ~ itota'f7 !!!i~ilttnt~ tn.~ """ 1•••4. ~'t"M>VKii tt• •''";w 414 han ~ &~.Mwa .. lt wae seu11'all;v toll. tl'..a\ 1a c:z--=81;_ ;ana.-.-a.~a. w1d nii1:!-•;t ~!!!lt.1~~=-· • bot~,n-- .... ~--~t(L~ ~ }'1~...; !!=;~~~- tc~-~ ~ !f!I!!J, ,Q'lllf• MPSM.n1! <Jenn v • .POJ.t!!!!J~i !,~~ ~ OQI,.l.rsall. We u.w-Nlloa ilLnitrHr ot the ltli .arttalla-a. u .. ~=--1-~a ~It; one; man ttu;1i =ot oll1j t~--... GA *- protd=_bt.~ Mn!op~ a •eane or eYeMO!!ltft8 !,. It !.e the ptgpoe or w• J!'eoort lie reoord thll uilaii• J~Uneumii.na til.e &iN'iiiiDlllltllt ot a Gol.d WiiB-~be:r 00iib&t-t1rj~ic ... -._Ylo&·-· ~;;.a ~-.i14 tt-.e U. f!, ftltlc Oal·1b .. :JC, W-1.

DECL,"' .. SSIFIED


DECLASSIFIED

b. 50l:"i':eant PolCIIIlllkY bent the handle from 11. · o.rantetm ou·.:; 1n~, a .. 15o-angl.e a.ud 8tli.'LWGd one un4 to ttUJ lower t.J~·~1-..t or th.e ~"lrlJlne pistol sr:t.p 'by 'borir.g a hole tb..~tlgh tho metal gn(l :)laoLn-t:: a sc:rew tl"..rougb ! t into t!'t...e etoak. He then o1Jtn.ined a pl.eo• ol' wi!!'8 tma a ration box, secured one end to the trigt;GJ= antl "the other end 'kJ th<; af'or--Gment~~ee~. ~~)if'~H:c. of metal. _ Wh.on yrcasu..-c !f=G _ ~pp~!.ed ~we...~_ to l;}Uo bAn1; ''11AAA ni" m .. tA1. th .. Vi 'NI wt'IU1~ t~ll'hUh And DU1~ ---- ··----- ···---- ..... - ----, ---- ----- ...... --- --.... ----- -·--.---- ._---"the trif~r~or. Releaa1M tha ure&mure on the metal baud would er..ahle It tc &pr1.nfS ba.Gk to lts or.1g1Ml posit:tcn.

o. The ael'!!eant knew that this Citlvica wa.s orude but 1t served ~a a bua1u tor ~~w~r u~ ~id &~arimentat1on. Dimadv .. :· .. ntagoa 1n the ttrat ecdel vere: the 1tcck wae mut!l:= ~~~~~~ -~~-r!l~1~~! ~~t~!'dt~~-~~!-~·!~~ ~~ _!1!! _!!ul:-.. n~~ -~;ally IIW U" "'~~"' ou 1 rum """' "l".l.lc\:MV•" WlU II WQ.Ii. ""' Pl:l£'111'1. 11 ',..,_..., ;t~Pl~1n;;:. _ ~ OV~~~mc _ -~heu~ dlaad!&.'l~:gor;, ~rgOL'!t P~l:>!ll!!ltY d.Yl!!!etl I! !!IOtUrlO&'!;;!O!\ 110 I!!Ut JUs,: czne p:L!tC!!J Of' ~li!U. eo bent that it coUld be •cliWP a.t\aahoa.·· W tt• ISBIW.l ot tho ;toak n.nd notahSd so t.lult O:w en! wcrAd b• allcwod to reet op tlla tr1gge:r. then pree!'..trt a~.\Pl!.EHl upw&!"d on the metal would~ oause the iri>at:tu• to be oulled by the o"""iii!K a.ot1on. 'lhiu mod&i w-aa bitt;r thaa th.e tirat but 1t attil need>d Lrnj)rovement., After muoh thought and et-tu'1• tJe:rge!l.l'l.t Polansky datermi.naci that a strip of metal aould oe seourod b7 tne raooll plate iUir&ii a.-u1 GOUld 1;;& w b8&it arou..-.1 tho tr-tt:aer gua..,...,_ that it would. tr=aem!t preesure on the trig= ger Wll$1'! the !JH!!W. hnnd uRg tqu.ee s$0.. 'Yni a w..,;,gn, dllffer.,n trom th-D aeoonc. model only in t.hc met.taod to whloll 1t; was attaohc~d tc the oar'b1na atoolt. !h; or.lj a1tornt1cn 1n the :pree _;rtt model C~tarblne ft:t:_t.!L~!d 1! a HOOU pl.&~ Sl!~ vhioh in about 3/1.6 of an inoh longer and 1;1 nut to secure tJL..~V metcW.. etr1n tr~ tho trtouk. ~1:-"da 4&u1gn would pendt greater er1oe 1ri di;aatJtmbly (~f the carb1P&. B;r merely looo?n= !ll.;:: t;.ho rr:t• the band oou1(1 he ~~~ttd ~- t~r~~y ~~~~~~;;!ng 1 t l'rnm 'the trif.\Sl)J' ruvl '>E!l'llll tlln.g nn.l :n.e1a. trti'1 •;>J.ng.

d. In the present ito(.;.~l, the plaos or met&l usod ic etUl ~?.,. Q.~;~nteen O':!P !t..a.ndle. It ie !'..Ot Yholly ent!et"aoto:ry beoa:u!le the aammimt R111"i'nea t·l' the h.andlo 1 e aauare and the . --------- .. , --·-··------ -· . - ·-· -· -... -'trlv~•r io Ol,i.f'T"• Smoother &at10il rNO\ild :F&i\il. t if the aur .. taoi-o£ the aot-~tor v;s rotL .. .dc4. A ;p1tce c:r_ =e't31 t-f"l th pro1)e!' ep~!!'~ e.nd tensile c.b.r.~acte,.!et!oe aould tasny be r.1eeigned :i"\'r tne pu:rpoee. i3eJ'{:II&Ilt Polollllsky also preaerd;ed '&:be s.tlii$, that in order to adJust or rremove th.G nut svour1.r~ t..~e tr1 €@:" adap~er to stO'-.Jt, ~- prepe·l- :i:.ed. wrench tl tt!!1l; oould be out or etAIIIJ"'!!!d 1nto the !!!tttlil.l tab on the :forward e'ii of the web aling.

•'1 --~·

DECLASSIFIED


DECLASSIFIED

A• f3r·!'g&ant PolO!!ekf vae a=ee!.=H~· tn' wol'k1r~:: d.esit,;8¥ W"IIIYJ.n;;;•• tu:Ki. models b:r Master ier•:eant 11 • .i. iiandera. ¥.tunli~r.a;--~o~OO~p&..l ... ..;1 lat. O~"'lrtrulii· Battai1qn, P?1Vate J'i.ru\ Olaa& DllV'td iie ~ugbm8Jl_, 5e!'Sea.t'l't Polelk:' s tentmat-e r..eaet. the de= v1ou, ~Ski Squeeze".

a. 11'-J.it 1dva am! JJr1no1ples ot a eol4 weather tlria'r. deYic~"J r:·::· :r\ t.I..e oc.rbinc _might alae b• m:~rpliad t; .. , tll$ M-l P~hG. l'Ilt oon&•th>~.l!! !e thAt t!'Je M-1 t\!!tot!oXI..ed bet,te!' 1n oold u!'HI t... hul" tL.u:. <:.iC the oarbia•; and people amaci with tne oarbine uauall~i :r~rotar- to oa.rq a.n M-1 d~lng vold wwath.e~. In vrrup~ra.tiun Fer ~h~ ~ ~~~~ _ w~nt~r ope~~:t~~r..:, about 121 !1.-l r1tJ.eo nave oeen ana,ea. 'tO :~_nnml'r;r Da'C't&l10!UI to l"Al'll Mill ~" iliUlf cu~.rbJ .. neu. A_oold wenther t1rill!: devioG-tO-·i;ftimit-·the r1ncm~; t;~ fire tho J(-1 ~1tl.~ wi t,J..,.out hav1~ to r-waove r~s mi ttelis 1a ne•dett. ~e!'ge!l.nt Polome..ttr. BattQ.!on .A..rmorer lat Dattruion. 5th Marinos, presented the fol.low:inr3 idea for aolv1tll::: ~h1s i.;roblem.

b,. Bot~onnt l'olomsky* s t!:rat 1~.!. .. or !\ f!!'!ng dev!ce was eim1l•:r to that uaed on the oarbino. it was found, i:loweYer,_ th:~ t :the oeu1taan oup r.u,...~a- vaa not lor~ anoue;r.. 1 t w•a too d.1ftioUl t to attaah t..o tho tro!gs;er, and :retrJ.$.Pe4 too ma.n:' extra. lHlrta. Manter ::\an::cant Snnde:ra nn(: Semaant ?olomak_v tcseth.e.r, dvvalopfd a 4r-·;w'1.r.g of a wv~·lr.e iiOdil. Tt..8 ··rin~ model wn.e m.ade for ~ dP:tll elte=l rod. wh!ch waa bent into & ..... It • ... ~ -. -. - - - - -- • -·u· Sll:ITHJQ anrl.ru:t. .I. to W'\R ·cnan nlaoad Rr~Atnall 1:nf!l lllll'>t!k . ..., tha' oriG and' waa-eeou.;;;ud to thO f..Oi8 -1n-ti_.--H.r .. --Of ~ th.S .. _ ~itc-ger fit!J!_.WIIrJ. ~Ul_:l,. tl_le 0 t~.SI' _ r.~!''teJ~ ~&!.tl.C ~ the triggsr. \fr,.o~. p~ sure wan a ~Jll9t1 &O'IU.n•l: 'thA Mll1:tllll n1' 1:''" a1:ouol om,.! nu t1: . - - -- - -· ~------~ ----- ------- -~- -·-- ------- -..----"'Q --woUld yn:~uu age1nat tho tr1g"wr an~d roroe 1 ti to tha rear.

r.h !leVEJral proM ems ~l'& eneounte!'ctl 1n '1evelo; . .d.J:lt;; 'the \iOl'klht:: model. It; was difi'ic1U t to a't taah t;li! :levi eli ~oo the hol~? l£i tha tr:Lt1gor-_ guard. This w·as ovex-GCAnt# by- t~'-Y!;1llif n. bolo 'rt tl!e e!de or t..he hea.d or a oapa~, th!"ead\ng t~·2s in<! r>f t'l,<J 'lrill gtesl. lJOI'Ow:ina th!l!!l toReth!'lt>. inAsi'ti:~c .. ~... ..... . ... -.- ·- . - ..... tho \.H.~J om~•.:nl th.l-vi.lU~·:a. th.u hole. &ntl Aeou.r:ixlt-~ 1 t i.tl th a nut. T!'le real"' :.}~ .. ~~ tr~gger g',:a..'"'d· 1a tapor-.4; in or-der- to p:t-eaw"lt a nqua1te ~JlOUlfleP :rcr eeouring the nut, ,_.,dgf e.,h•ped }ta~lel.~c had to be :tnoex-ted. Although drill .te..:l. ia strong: 1t is too br1 tt.:a for r.llapir,f~ .~.~1ea ... hond1r.l(~ z--equ1.r~a. The piece uo'-Jt...·. tor me.k!ng t..lle mo~..el bz-clte wl'..Ue try!r~ to bend it Ro tl'k'"l.\ one t1ad \JO~.d l'Bst on thB tt•!rrger. A of11nt'l.,1oa.l p!eoe 1l!

_ .. __ ,. __ & ........ __ .. , ,. .... -" • .... ... ..._ ...._~ ...

. u ~..,....,. "'"' ~: '.L w;,111 ,;rR;?;'.:u e.~ l"'-<Ulli .!\nf\.t.er. 1-0 ~ne end of Lhe l'OU ao this eunsd aurf~oc l:au.ltl·- act a£;a1nit the t:rigger.

DECLASSIFIED


DECLASSUIED

4.. Oonol.ue1an

a. ~he Ski ~~=ze dert~e J?!~!:~. t;h~---~!~«!~- ~.£~.f1l'e tt<!ll H~l r!tle nth "''~se MC. w1mou~ Illi.Y'J.ru_<: w iiak~:~ u .. L

ru.• mi,;tens;. 3everrd 8Xi>ert r1n.uan ha.ve fired tllo ]tl.,..J.. _ j;i,J.~C- w1 th- tlH; a.bOVi diii~G:Pib4d working =odel _ l\lld ~ !"l_q.ye ~~a~ t112:.t t:~-( .. 1 (Level<:.n;r:-:1ont of the !dee. !e oxoel.lent 8-n.t'l pncna .. oaw.o .. --. ·- ..... ___ ....._ _______ ...... _,..

for 0•)1.~!. •.Jt);ct!<er oomb!tl!! OJJ6:!'a'lllono ana aoaa no" pBnuw•<>aw.,.

mo·di.f:~ 1...1a~ !)ieee tor i te rut;-wwn to ti.l71rJf~ under normal oon-n • .._ .. - .. -Ql. "'.L0l13•

DECLi-".SSIFIED


1st marine division - special report - type c - winter ...€¦ · 1st marine division - special...

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