Comments on: Annoying M4 hopup

By: saile reye

saile reye — Wed, 23 Dec 2009 11:38:21 +0000

oit of the box i found a defect problem with my new m4. the charging mechanism wont rturn back when i charged it.. seems a loose spring or without the spring mechanism to activate a charg. also the noosle of the gun were not align. need a help fix. thnks
okngarud29@yahoo.com

By: R7

R7 — Wed, 16 Dec 2009 05:48:17 +0000

Probably a broken air nozzle? Maybe a dis-alignment of the hop up chamber relative to the nozzle?
R7

By: TJ

TJ — Wed, 18 Nov 2009 18:11:58 +0000

Hey all, I have a JG M4 carbine, I just replaced my plastic 2 piece hopup with an all metal hopup. I had to completely take the gun apart to get it in there but it all fit back together like magic. But the dang thing doesn’t work now. I pull the trigger and the motor engages and it sounds like the mechbox and piston run through their cycle. But no BBs come out the business end. I know BBs are feeding into the hop up, I cleaned and checked the barrel for jams. But still nothing, BBs will occasionally roll out of the barrel. I did lube the whole works up pretty well, maybe some got in side the bucking, would the BBs be sticking to it now? Some kind of massive air leak? Be glad for any help, thanks

By: spike

spike — Tue, 29 Sep 2009 08:44:08 +0000

i have jghk416. i wnt to put it on it’s high end, change the spring into the max… i just want to know what other parts needs to be change so that my plan will materialize. it will be much apprieciated if it will be itemized and specificied what are needed. hope somebody can attend to my call….thank you

By: Ruebn

Ruebn — Sun, 27 Sep 2009 04:25:21 +0000

the g36k hopup should be the same as the g36c i still had some problems with it although the nubs that keep it towards the barrel broke and had to get another so whoever has a g36 i strongly recomend a metal hop up (bought mine from SRC) and a systema bucking

By: Otto

Otto — Tue, 22 Sep 2009 20:07:07 +0000

Cool; I’ll have to tell my friend because his M4 hopup is awful. Can you do one on the A&K M249 hopup, and while you’re at it the gear box? Thank you!

By: Drew

Drew — Tue, 15 Sep 2009 02:58:25 +0000

Alby,do you have the spring under the adjustment arm? if not then it will always be pushing down on the nub therefore you cannot adjust for less down spin.

By: Drew

Drew — Tue, 15 Sep 2009 02:53:39 +0000

Streeetbob,yes you will need a one piece metal hop up, i would suggest a Prometheus or a systema . you can get either of these at airsoftgi, evike or redwolfairsoft.com

By: Drew

Drew — Tue, 15 Sep 2009 02:45:50 +0000

Steve,if you do get a full metal hop up (one piece) then yes you will need to modify your body, the only way you wouldn’t have to is if you got a metal body, which in that case you need a metal hop up or it wont work. hope i helped. P.S. just look up how to modify your plastic body so a metal hop up will fit, all you need is a dremmeling tool or anything that will cut through plastic

By: steve

steve — Thu, 10 Sep 2009 10:47:52 +0000

Hi all, i have a JG M4 S-System, which is an excellent buy might i add, but i have been having fps and accuracy consistency issues. I’ve just ordered new H-hop and bucking to fit in but wondered about an all metal hop. Obviously the the all in one construction is very different to the standard hop unit which is separate from the BB feed tube. (sorry if the terminology is wrong)
Would i need to do any mods to the body to get one in or is it a simple swap out.
Cheers
Steve

By: Vincent

Vincent — Mon, 07 Sep 2009 04:01:04 +0000

Hi SR25,
Make sure your hop up spring (under hop up arm) is in place. Also, don’t spray too much silicon oil in there because that may also be your problem. Or, one of your gears is stripped (on hop unit) and not working!
Vince

By: Gaz

Gaz — Sat, 05 Sep 2009 04:55:48 +0000

Hey, since we are on the topic of M4 hop ups, how about the newer WA, WE, AGM and etc. GBBR hop ups? those are completely different from AEG hop ups and i can’t seem to find how to get mine out!

By: tmc

tmc — Mon, 24 Aug 2009 02:19:04 +0000

lost my hop assembly spring. replace it with a pen spring. fps drop by 50. cant find one for sale.

By: SR-25

SR-25 — Fri, 31 Jul 2009 07:52:36 +0000

I have a problem with my SR-25. The hop-up is adjustable, but when I turned it to the max, it barely lifted a 0,20 grams bb. For 0,25 for an example, hop-up is too low. Can i fix this myself somehow? Tried the silicon and barrel-cleaning already. Thanks

By: zack

zack — Tue, 28 Jul 2009 17:16:42 +0000

hey i have a double eagle m4 a really cheap gun that i bought off ebay it broke 9 weeks after i had it thew gearbox stopped working can any1 help me fix it?