Feeding Issue. VFC VR16 with pro-win hop up

warplane95 · June 14th, 2015, 22:08

I changed litteraly all the internal piece with my gun. Now I have a feeding issue.

The gun vomit the bbs, when I release the mag, arround 5 bbs is dropping.

If i'm pushing the magazine from the bottom it help, but I still have super low FPS bbs once a while.

We tried cheap plastic magazine, stock VFC magazine, MAG magazine, nothing work. I'll put velcro inside the magazine "thing".
We tried a few bucking. Lonex, G&G green, Modify, and two other brand I can't remember. We tried stiff and soft bucking, flat hop and standard nub.

So, i'm starting to think maybe my problem is from the nozzle or the hop up unit.

What do you think it can be?

VFC VR16 gen1
Pro-Win M4
Lonex bucking
Prometheus barrel
ZCI Nozzle

warplane95 · June 15th, 2015, 12:02

nobody?

BioRage · June 15th, 2015, 12:10

Make a video, easier for people to help you.

HKGhost · June 15th, 2015, 12:17

It's the prowin hop up chamber. They are finicky in some guns and won't work right. They seem to work better in guns with lower tolerance like G&G or CA. VFC have high tolerance and if the hop up chamber doesn't fit just right, it won't work. I have yet to install that chamber in a VFC AR which worked flawlessly. I've had better luck with the Modify hop up chamber.

lurkingknight · June 15th, 2015, 12:46

I agree, the vfc gearboxes do not like the prowin. It's most likely sitting too far backwards and needs to be shimmed forward a bit but I didn't bother investigating. If you took out the rotary adjusting vfc unit, then that was a mistake, cause that unit in the new vfcs is just as good as the prowin from my experience. It's only weakness is that it's plastic and the feed tube can break.

IF you got the older 3 gear adjusting hopup unit, then the modify chamber is better.

warplane95 · June 15th, 2015, 13:16

I broke the stock rotary unit by mystake. I'll try to glue it back I think

Do you know other rotary hop up (or great hop) unit that work great in VFC AR15?

warplane95 · June 15th, 2015, 13:40

Look like I'm having the exact problem:
http://www.reddit.com/r/airsoft/comm..._prowin_issue/

pestobanana · June 15th, 2015, 14:48

Just get rid of the pro win and stick a Lonex unit in. Bend the mock bolt slightly so that it does not interfere with the second gear and reset your hop when you close the bolt.

Danke · June 15th, 2015, 15:10

Just trim the BB release catch on your mags.

You can see as the mags hang low the feed tube isn't fully tripping it; when you push up you let some BBs out and then when you let go it re-engages.

And as a side note dropping 4-5 BBs on mag changes is normal for an AEG.

pestobanana · June 15th, 2015, 16:05

Quote:

Originally Posted by Danke

Just trim the BB release catch on your mags.

You can see as the mags hang low the feed tube isn't fully tripping it; when you push up you let some BBs out and then when you let go it re-engages.

And as a side note dropping 4-5 BBs on mag changes is normal for an AEG.

The pro win issue is one of nozzle misalignment and had absolutely nothing to do with what you're talking about.

Hectic · June 15th, 2015, 22:56

^that.
the issue of the mag tab would cause no feeding unless you press up on the mag.

warplane95 · June 17th, 2015, 01:22

I ordered Hop-Up o-ring. I'll give a try.
http://www.airsoftstore.ca/index.php...roducts_id=259

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June 14th, 2015, 22:08	#1
warplane95 Trader rating Join Date: Jul 2009 Location: Moncton	Feeding Issue. VFC VR16 with pro-win hop up I changed litteraly all the internal piece with my gun. Now I have a feeding issue. The gun vomit the bbs, when I release the mag, arround 5 bbs is dropping. If i'm pushing the magazine from the bottom it help, but I still have super low FPS bbs once a while. We tried cheap plastic magazine, stock VFC magazine, MAG magazine, nothing work. I'll put velcro inside the magazine "thing". We tried a few bucking. Lonex, G&G green, Modify, and two other brand I can't remember. We tried stiff and soft bucking, flat hop and standard nub. So, i'm starting to think maybe my problem is from the nozzle or the hop up unit. What do you think it can be? VFC VR16 gen1 Pro-Win M4 Lonex bucking Prometheus barrel ZCI Nozzle __________________ Be gentle I'm French, If you don't undersetand what I say, just say it. Last edited by warplane95; June 14th, 2015 at 22:12..

June 15th, 2015, 12:02	#2
warplane95 Trader rating Join Date: Jul 2009 Location: Moncton	nobody? __________________ Be gentle I'm French, If you don't undersetand what I say, just say it.

June 15th, 2015, 12:17	#4
HKGhost Trader rating Join Date: Nov 2009 Location: Mississauga, ON	It's the prowin hop up chamber. They are finicky in some guns and won't work right. They seem to work better in guns with lower tolerance like G&G or CA. VFC have high tolerance and if the hop up chamber doesn't fit just right, it won't work. I have yet to install that chamber in a VFC AR which worked flawlessly. I've had better luck with the Modify hop up chamber. __________________ Please email me as I'm not on ASC too often. Custom Build \| Upgrades \| Repairs \| Maintenance Contact: ghostgunwork@gmail.com / Private Message Last edited by HKGhost; June 15th, 2015 at 12:19..

June 15th, 2015, 12:10	#3
BioRage Trader rating Join Date: Nov 2008 Location: Toronto	Make a video, easier for people to help you.

June 15th, 2015, 12:46	#5
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	I agree, the vfc gearboxes do not like the prowin. It's most likely sitting too far backwards and needs to be shimmed forward a bit but I didn't bother investigating. If you took out the rotary adjusting vfc unit, then that was a mistake, cause that unit in the new vfcs is just as good as the prowin from my experience. It's only weakness is that it's plastic and the feed tube can break. IF you got the older 3 gear adjusting hopup unit, then the modify chamber is better. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.

June 15th, 2015, 13:16	#6
warplane95 Trader rating Join Date: Jul 2009 Location: Moncton	I broke the stock rotary unit by mystake. I'll try to glue it back I think Do you know other rotary hop up (or great hop) unit that work great in VFC AR15? __________________ Be gentle I'm French, If you don't undersetand what I say, just say it. Last edited by warplane95; June 15th, 2015 at 13:25..

June 15th, 2015, 13:40	#7
warplane95 Trader rating Join Date: Jul 2009 Location: Moncton	Look like I'm having the exact problem: http://www.reddit.com/r/airsoft/comm..._prowin_issue/ __________________ Be gentle I'm French, If you don't undersetand what I say, just say it.

June 15th, 2015, 14:48	#8
pestobanana Squid Porn Superstar, I love the tentacles! Trader rating Join Date: Nov 2008 Location: Richmond Hill and Waterloo, Ontario	Just get rid of the pro win and stick a Lonex unit in. Bend the mock bolt slightly so that it does not interfere with the second gear and reset your hop when you close the bolt.

June 15th, 2015, 15:10	#9
Danke Prancercise Guru Trader rating Join Date: Oct 2007 Location: Danger Zone	Just trim the BB release catch on your mags. You can see as the mags hang low the feed tube isn't fully tripping it; when you push up you let some BBs out and then when you let go it re-engages. And as a side note dropping 4-5 BBs on mag changes is normal for an AEG. __________________ Airsoft, where nothing is hurt but feelings.

June 17th, 2015, 01:22	#12
warplane95 Trader rating Join Date: Jul 2009 Location: Moncton	I ordered Hop-Up o-ring. I'll give a try. http://www.airsoftstore.ca/index.php...roducts_id=259 __________________ Be gentle I'm French, If you don't undersetand what I say, just say it.

Feeding Issue. VFC VR16 with pro-win hop up

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