jg m4

[seabees]

i dont know if this has been asked before, tried to look pero cant find one.

nagsettle na po kasi ang jg ko sa 360fps, so i decided to change the spring to m130 (systema).

what happens is, nawala ang single shot niya. pag single shot po, sa harap lang siya bumabagsak, batay sa aking dragon chrono 8fps po siya.

tried switching to full auto, satisfied with the ROF, better napo compared nung una. forgot to check using my chrono.

tried firing single shot on auto mode, luckily nakakuha ng 410fps.

wala po akong ibang binago maliban sa spring.

ano po kaya ang nagawa kong mali???

[solidcarlo]

nagpalit kayo bat sir? d ko sure ito ha, base on experience lng.. nung 120 spring ko, ok ung lipo batery ko,, tpos nung nag 150 na, ayaw na mag semi(nagcli2ck lng).. pag auto nman kaya nya pero umiinit. nung nagpalit ako ng mas mataas na lipo, kaya na e semi at auto mabilis na, d umiinit bat.. try nyo sir sa mas mataas na cap na bat kung nag sesemi sya..

[seabees]

forgot to add, am using a firefox 11.1 batt na nga pala even though stock pa rin ang internals niya.

pero bago ko siya pinalitan ng spring eh ok pa naman ang single shot niya.

anyway subukan ko mag down grade ng battery or mag upgrade sa 15c. thanks for the suggestion.

[paladin_30™]

Sir, Good day. nalilito po ako. After you changed spring, biglang nag full auto pag naka semi auto mode yung gun mo? Then you tried to make single shots on full auto mode and your gun shoots to 410fps? tama ba sir? Baka nabali po ang cut off lever mo kaya wala ka semi auto mode or may loose connection sa selector switch mo sir.

[imong12680]

Siguro what sir seabees would like to say is that nawala ang SEMI nya, pero kung pumutok man 8fps lang.. He doesnt have any comment about the FULL AUTO bacause i think he is already satisfied with 410 fps and ROF...


@seabee
wala ka sir pinalitan kundi spring lang? no question about the piston body(although made of plastic) and gears because ver. 2 jg m4 can handle m130 spring, pero how about the shims and bushing?

[seabees]

sir spring lang po ang pinalitan ko.

try ko ulit buksan para makita kung may nabali na parts.

kaso wala namang umaalog or kakaibang ingay....

thanks so much for the info mga sir's....

[jefman]

@seabees...
sir, kung spring lang yung napalitan, i dont think na dapat affected yung semi nyo. as you mentioned ok naman sya sa full auto. try to check the electricals o yung switch plate mo. baka may nagalaw na part sa may trigger.
when you use the semi does it sound the same as when you fire a single shot sa full auto?

[iceman17]

Mga sir sa case ko naman naka JG M4 CQB ver.3 all metal na ko.
Ask ko lang mga sir kung kaya nya SP150 springs or kung magpalit man ako, ano pa dapat palitan ko na parts? Nka-lipoly 11.1V, 15C 1450mA na ko w/ 6" suppresor...
In addition balak ko rin plitan ung barrel ko ng AK length na Madbull 6.03, mga ilan fps po kaya sa chrono?
Thanks in advance mga sir.

[seabees]

sir jefman, tengks po.

will try to check the switch.

may semi naman po siya kaso sa harap ko lang ang bagsak ng bb's. no unusual sound naman po pag semi.

again thanks for the info.

[imong12680]

wala nman pala sir problema sa switch assy mo or switch plate kasi may semi nman . sa tingin ko sir sa compression yan.. nangyari din sakin yan, semi ko ang pangit din ng buga pero sa auto ok nman.. what i did was replaced the stock piston head o-ring with the industrial o-ring (thicker), yun solve na ang problema ko..