Misfeed solved sa JG M4 CQB

[bullpup]

Mga Bro,

Share ko lang po sa inyo ginawa ko sa misfeed ng JG 4 CQB ko. Please tell me if tama yung ginawa ko o baka later o magkakaroon ng problems.

Nag cut po ako ng credit card na mga 5mm x 7mm, 2 pcs. po tapos pinagdikit ko ng cyanoacrylate. Dinikit ko po cya sa upper portion ng Hop assembly, bale in between po cya ng GB at nung hop. Adjust lang po ako by sanding it dahil ayaw lumapat yung upper receiver. Lumabas eh mga .5 ang nabawas sa isang piraso ng card na magkadikit.
I observed kasi na BBs wont enter the hop chamber dahil nakaharang yung portion ng hop. So bale po tinutulak forward po nung kinabit ko yung hop and barrel.
So far wala pong misfeed and lumakas po fps dahil sinunod ko DIY ni Alencore na lagyan ng o-ring yung air seal nozzle.
Upgraded na din po pala sa metal bushing and shims na CA brand.

Please advice po kung mali ginawa ko.
TIA

[wolfie]

what you did is ok. for me what i do is i shave a portion of that hop chamber where it's blocking the entry of the bb, so far it works. :)

[bullpup]

Thanks Sir wolfie. Wala naman po masisira sa ginawa ko?
Actually mag shave ako sa portion ng hop chamber kaya lang halos umabot na sa hop rubber bucking kaya tinigilan ko na. So far, so good naman po performance ng CQB ko.

BTW, ndi po kaya mag cause ng leak yun ginawa ko.

[wolfie]

what you did is ok sir, wala masisira dun. wag naman yung masdong sobra yung pagkashave niyo, ok lang kung medyo nakikita lang yung lip ng hop rubber niyo.

[maestro]

simple solution sir sa misfed ng boyi m4 ko palit guarder brand na hopup rubber at scs...swak wala ng misfed...
BTW same m4CQB baril natin....yun lang mod ko ok na...

[knightmare™]

Actually sir ung misfeed is caused by the O-ring na kinabit dun sa nozzle. Twice ko na kasi naexperience yan eh then when I changed to an air sealed nozzle nawala na ung misfeed. This happened to my JG S-System and JG M16-A1. No need to put spacers or shave parts.

I don't know if this is an isolated case but in my case 2 times kasi nangyari. Pero dun sa JG AUG Military and Cyma AK74 ko I used O-ring for the nozzle and wala naman problem.

[bullpup]

Update lang po........... I removed the spacer kasi may leak............ shaved the portion of the hop na nakaharang sa pag pasok ng BBs. Ok napo. No more misfeeding....... nagpalagay na din ako ng SCS.

Thanks po sa lahat

[krasny]

Mga Bro,

Share ko lang po sa inyo ginawa ko sa misfeed ng JG 4 CQB ko. Please tell me if tama yung ginawa ko o baka later o magkakaroon ng problems.

Nag cut po ako ng credit card na mga 5mm x 7mm, 2 pcs. po tapos pinagdikit ko ng cyanoacrylate. Dinikit ko po cya sa upper portion ng Hop assembly, bale in between po cya ng GB at nung hop. Adjust lang po ako by sanding it dahil ayaw lumapat yung upper receiver. Lumabas eh mga .5 ang nabawas sa isang piraso ng card na magkadikit.
I observed kasi na BBs wont enter the hop chamber dahil nakaharang yung portion ng hop. So bale po tinutulak forward po nung kinabit ko yung hop and barrel.
So far wala pong misfeed and lumakas po fps dahil sinunod ko DIY ni Alencore na lagyan ng o-ring yung air seal nozzle.
Upgraded na din po pala sa metal bushing and shims na CA brand.

Please advice po kung mali ginawa ko.
TIA


yep sir, its quite ok to do that, but 5mm? parang mejo makapal ng konti. me, i use about 3 to 4 strips of electrical tape na pinagdikit dikit and cut it to size and glue it on the area where the upper hop assembly meets the gearbox. but its actually better to do try placing a strip of electrical tape one at a time, so as to minimize leaks if the spacer is more than what is needed.

this usually happens when you have a tm aeg or a tm clone aeg and you replace the gearbox with an after market brand (classic army 6mm gearbox, don't know about the deepfire or jg one, since ca lang talaga ang replacement gearbox ko) the length of the ca gearbox looks like its a bit shorter than a marui gearbox by a few mm. umuusog papaloob ng lower hop assembly yung lip ng upper hop assembly.

better use the tape/spacer than cutting the lower lip of the upper hop assembly...

[bullpup]

Tnx po sa mga nag reply.

[papagalyo]

mga sir, have the same problem with my jg m4 s-system, kindly post some pix regarding procedure. many thanks. marami po kayo natutulungan mga newbie like me.