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 Author | Topic: SOPMOD Disassembly Guide (Read 8,281 times) |
Hazard
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|  | SOPMOD Disassembly Guide
« Thread Started on Jan 13, 2009, 10:33pm » | |
Taken from here: http://www.first-jp.com/fmd/SOPMOD/index.html
Translated guide is as follows:
Disclaimer: disassembling this gun is done at owner's risk. We (or the source) will take no responsibility for any problem that may arise. Also, remember that disassembly will void any after sales service offered by Tokyo Marui.
I. Preparation
1) Tools nedded:
a) + screwdrivers (a.k.a. Phillips screwdriver, small, medium, and large)
b) Torx screwdrivers (T10, T6)
c) mallet (when necessary)
d) lock ring wrench (available at Tokyu Hands) or stock pipe wrench.
2) Fire gun at semi to leave piston at rest
3) Remove battery
II. Upper Frame Disassembly
1) Remove frame lock pin (front).
2) Pull thingying lever slightly to disengage the lock and pull the upper receiver away from the lower receiver
3) Remove the bolt blowback parts as shown in the image below:
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/001.jpg "[image]")
III. Stock Disassembly
1) Remove stock by pulling the stock lock lever slightly while pulling the stock away from the stock tube
2) Remove the 3 screws shown below, and remove the wire cover
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/003.jpg "[image]")
3) After removing the wire cover, remove the spring that below the terminals in the stock tube.
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/006.jpg "[image]")
4) Unscrew stock ring
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/009.jpg "[image]")
5) Remove buffer
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/012.jpg "[image]")
6) Unscrew stock pipe. CAUTION: the spring guide is in the stock pipe so removal will cause the main spring's tension to be released
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/015.jpg "[image]")
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/018.jpg "[image]")
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/021.jpg "[image]")
IV. Lower Receiver Disassembly
1) Remove motor and grip (same as current M4/M16/M733)
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/024.jpg "[image]")
2) Remove lock pin as shown below. Note: the rear frame lock pin is a dummy.
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/027.jpg "[image]")
3) Raise mechbox slightly and remove the bolt catch
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/030.jpg "[image]")
4) Remove magazine catch (same as current M4/M16/M733)
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/033.jpg "[image]")
5) Remove mechbox from lower receiver
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/036.jpg "[image]")
V. Mechbox Disassembly
1) Remove 4 screws as shown:
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/039.jpg "[image]")
2) Carefully remove the screw indicated below. This is a spring loaded mechanism for the bolt stop function.
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/042.jpg "[image]")
3) After removing the bolt stop mechanism (spring indicated by an arrow), remove the last screw
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/045.jpg "[image]")
4) Remove the mechbox shell. Be careful for there are still 2 springs, the tappet plate spring and the trigger spring.
![[image]](http://img.photobucket.com/albums/v194/norman3312/SOPMOD/048.jpg "[image]")
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lifes26
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| | Re: SOPMOD Disassembly Guide
« Reply #1 on Jan 13, 2009, 10:45pm » | |
tama ang hula ko... dummy thread lang iyong nasa buffer tube... ung mas mataba ang may gamit
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lifes26
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #3 on Jan 14, 2009, 11:31am » | |
Na-translate ko na 'yung Japanese. Natingnan ko na rin 'yung French version, mukhang half teeth nga 'yung piston. Kaya siguro mabilis maubos kasi bale 2 springs ang kino-compress. Bale kasama 'yung sa blowback na shaft. Tapos parang high speed pa 'yung ratio. Maganda nga siguro para sa performance 'yung gumamit ng 9.6V.
Napansin ko lang parang pinalitan na ng cylinder 'yung galing sa First. Tataas pa siguro velocity kung papalitan ng Prometheus Type B or Type C 'yung cylinder, tapos kung uubra palitan ng piston head. Kung hindi, i-port na lang. Dapat malaki-laki din ang air volume kasi mahaba-haba ang nozzle.
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docas101
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| | Re: SOPMOD Disassembly Guide
« Reply #4 on Jan 14, 2009, 6:02pm » | |
yung mechbox internals halos pareho lang ng TM AK74MN.
anung yung FPS nito bro?
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #5 on Jan 14, 2009, 6:10pm » | |
Jan 14, 2009, 6:02pm, docas101 wrote:yung mechbox internals halos pareho lang ng TM AK74MN.
anung yung FPS nito bro?
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Sa akin pinalitan ko ng Prometheus 6.03 x 407 mm barrel, umabot 92 m/s sa SEALs 
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lifes26
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| | Re: SOPMOD Disassembly Guide
« Reply #6 on Jan 14, 2009, 10:46pm » | |
iyong sa akin 82m/s chrono ko sa bahay. pagdating a seals nag-chrono lang siya ng 79m/s
prometheus barrel narin 6.03 kaya lang 363mm lang
bukas papaitan ko siya ng spring tignan natin kung anong mangyayari
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lifes26
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| | Re: SOPMOD Disassembly Guide
« Reply #7 on Jan 14, 2009, 10:47pm » | |
Jan 14, 2009, 6:02pm, docas101 wrote:yung mechbox internals halos pareho lang ng TM AK74MN.
anung yung FPS nito bro?
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meron na bang aftermarket parts ito,,, like set of gears?
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docas101
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| | Re: SOPMOD Disassembly Guide
« Reply #8 on Jan 14, 2009, 11:39pm » | |
Jan 14, 2009, 10:47pm, lifes26 wrote:
Jan 14, 2009, 6:02pm, docas101 wrote:yung mechbox internals halos pareho lang ng TM AK74MN.
anung yung FPS nito bro?
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meron na bang aftermarket parts ito,,, like set of gears?
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wala pa yata. pero sigurado yan na may gagawa na upgrade parts like piston body , air seal nozzle at gear set.
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lifes26
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| | Re: SOPMOD Disassembly Guide
« Reply #9 on Jan 18, 2009, 3:57pm » | |
now i have mine firing at 106m/s, i just changed the inner barrel to 420mm and .9j spring.
I will try changing the spring again to lower it a little bit... keep posted
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #10 on Jan 18, 2009, 8:04pm » | |
Buti pumasok 'yung spring, di kasi bilog banda sa loob eh.
Pwede pa rin gamitin 'yung stock na nut tapos KM na piston head, ganun ginawa ko. Tapos ang spring na gagamitin ay 'yung Prometheus na pang-version 9 or mag-cut ng spring.
Medyo alanganin ako sa version 9 piston head kasi parang masyadong mataas pero mukhang kasya siya sa piston. Ayaw ko lang subukan kasi medyo mahal. Subukan ko na lang siguro kung humina na itong sa akin.
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #11 on Jan 19, 2009, 6:54pm » | |
Gagawin ko talaga sa harap 'yung battery, pareho nito: http://weblog.first-jp.com/2008/12/sopmod_m4_1.html
Eto 'yung same site na kinuhanan ko ng disassembly instructions. Since naputol naman 'yung wires ko pagbukas, gagawin ko nang nasa harap.
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #12 on Mar 2, 2009, 9:51am » | |
Salamat kay tower8 sa suggestion. Ginamitan ko ng vinyl tape (a.k.a. electric tape) 'yung thread ng stock tube bago ilagay. Nawala 'yung wobble tapos diretso na siya.
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tuks
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| | Re: SOPMOD Disassembly Guide
« Reply #13 on Mar 2, 2009, 4:51pm » | |
Buti pa kayo ang eexpert niyo na sa fieldstripping. Ako natatakot ako mag fieldstrip sa sopmod ko, at hanggang linis barrel lang..palibhasa newbie tapos mag isa ako dito walang mahingan ng tulong in case magkanda leche leche yung gagawin ko.
Ok lang ba mga sir magpaturo sa inyo kung pano magfield strip (for purposes of cleaning the internal parts lang dahil ayoko pakialaman yung mechbox) pag dumalaw ako diyan sa Tokyo area for Irene 9?
Either sa Saitama or sa Hachioji-shi pala ako pwede maki crash pagpunta ko diyan..alin ba sir ang mas convenient papuntang Irene gamesite?
Sensiya na sirs dami akong tanong.
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Hazard
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| | Re: SOPMOD Disassembly Guide
« Reply #14 on May 21, 2009, 4:18pm » | |
Share ko lang experience ko sa recent upgrading na ginawa ko sa M4 Blowback ko...
Nag-decide akong palitan ng metal bushings 'yung bushings ng M4 kasi merong wear dun sa outer surface, siguro dahil sa paggamit ko ng 9.6V battery. Unang problema, masikip pala 'yung metal bushings sa butas, kaya kailangan mo i-force fit (konting diskarte) or gumamit ka ng conical grinder attachment ng mini router para lakihan nang konti ang butas.
Pangalawang problema, masyadong makapal 'yung metal bushings. Sa sobrang kapal, sumabit dun sa selector lever, sira tuloy 'yung inner side (plastic lang kasi). Dapat bawasan 'yung metal bushings para makaikot pa rin 'yung selector.
Pangatlong problema, replacement selector. Bumili ako nung King Arms metal selector lever. While pwede siyang gawing replacement, mas malaki 'yung bilog niya by 0.2 mm. Dahil dun, medyo may lubak 'yung pag-select ng fire. Gamit uli 'yung mini router saka 'yung cylindrical grinding wheel, binawasan ko 'yung bilog.
Good luck sa magpapalit ng bushings
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