The GBBR Thread

[TheGrover]

This thread is turning me to the dark side. I think i might be buying a GHK G5 when my bank account catches up

 

[PT247]

I have gotten all my G5 bits from them gun included... and 10 extra mags!

I ordered in several stages:

1st order G5

2nd 6x mags

3rd 4x mags

They all came through very quickly. I had to pay the Parcel Farce fee of £13 on each order and custom charges. I did not have to pay VAT and they threw in a funky G5 T-shirt, an upgraded spare piston seal set and some GHK silicone oil (which is reportedly the best silicone oil you can get for GBBRs. Obviously I had to pay postage on each order but had I done the whole lot in one hit I imagine I'd have had to pay VAT too so swings and roundabouts.

At the time, compared to my closest GHK shop in UK the gun and 4 extra mags + fees cost roughly the same as just the gun in UK. The cost of the G5 has come down a bit over here now so the gap is getting smaller, but still money to be saved.... especially when mags are £45 in the UK so £90 for 2 plus P&P, when you can get 2 from Samoon for £45 + P&P&customs

 

[TheGrover]

Can you reccomend the G5 as a first GBBR? I think i can feel the dark side calling

 

[cavninja]

Cheers PT, great stuff, it would seem the fire in my pocket is saying "GHK M4! You know you wanna!"

Come to the dark side Grover! We have recoil!!! h34r:

 

[PT247]

The G5 is my first GBBR and so far is the only GBBR I'll ever really need. I run mine on HPA with a home made hi-cap now rather than gas which means no cool down and even more consistency between shots fired. The G5 gun and mags are really good all year round and although you'll notice a drop in FPS in winter they will still fire every round straight and true (just not quite so far as in summer). I play in woodland and range has never been an issue with the gun. Dead simple to strip for cleaning. It is a bit fiddly to change barrels/hop rubbers etc but not difficult, just harder than on an M4 AEG. Not sure how the GHK M4/AK strips down, they may be simpler than the G5 for gaining access to hop and barrel.
Only bad thing about the gen 2 G5 is the hop adjuster location IMO.

 

[TheGrover]

Cheers PT, great stuff, it would seem the fire in my pocket is saying "GHK M4! You know you wanna!"

Come to the dark side Grover! We have recoil!!! h34r:

I want to. Ive already sold my soul to the gbb devil but my wallet is still putting up a fight

 

[Mr Monkey Nuts]

Silicon oil is a very poor metal on metal lubricant, by all means use it to lubricate any o,rings or rubberized components, but for metal on metal contact in a GBB I like to use a much higher viscosity lube. I have been using Abbey Silicon Grease recently and in the past have used mechanics lithium grease to good effect.

 

[cavninja]

Silicon oil is a very poor metal on metal lubricant, by all means use it to lubricate any o,rings or rubberized components, but for metal on metal contact in a GBB I like to use a much higher viscosity lube. I have been using Abbey Silicon Grease recently and in the past have used mechanics lithium grease to good effect.

I tried various different types of silicon grease and graphite grease and still find spray silicon oil the most efficient and best to use. Easiest to clean, easiest to reapply and offers the best performance, particularly in cold weather. I've not tried any of the grease in the summer months, it'll be interesting to see how it gets on.

 

[TheGrover]

Back to Ed's OP, how do you control the FPS of a GBBR? In an aeg we just swap a spring, but say i wanted a g5 carbine and also wanted to keep it at ~330 fps, can i fit a different nozzle to adjust the FPS to suit site requirements?

Thanks

 

[PT247]

yup, you can fit an NPAS (think that is what they are called. Stronger/weaker gas can help too. Or go HPA and can then set it to what the hell you like!

 

[cavninja]

Yup, NPAS is what you need, check out the video posted previously, it basically acts as a gas regulator, allowing you to control the amount of gas used to propel the BB. I have mine set to 340fps, but that can then vary depending on the ambient conditions.

It means if you have the accuracy and range, just turn it up to DMR levels should you need to!

Ed mentioned earlier, as an experiment, cranking up the NPAS to the max, going with the strongest gas and heavy weight BBs and seeing what the FPS is and what damage you can actually do with one! Might give it a go myself!

My 416 has a 250mm inner barrel, but I've also got a 500mm inner barrel to go the full length of a dummy suppressor! That should make it sting a tad!

 

[Chock]

What I would say about spray oil, as I would about any oil really which one uses in a gun, but particularly when it is thin enough to be sprayed, is that it has the disadvantage of not being as thick as grease, so it will run down the parts and collect in lower spaces eventually. Everyone should be aware of that if they lube any gun up with thin oil and then leave it for a while.

You do that and go out and fire it without having recently lubricated it, and you will be mistaken if you think all of those working parts still have sufficient lubrication on them! Of course in a firearm, you don't have to worry about the thickness of grease and its practicality, because a firearm heats up a lot when you fire it, so you can get away with that on a firearm, but not so much with a GBB of course, although obviously friction will heat moving parts up a bit.

 

[TheGrover]

I see, will an NPAS fit a G5? is there a specific make or model that ill need?

 

[Airsoft-Ed]

I see, will an NPAS fit a G5? is there a specific make or model that ill need?

There'll be some sort of NPAS available for it, or at least a different nozzle valve that you can fit to alter the power.

 

[TheGrover]

There'll be some sort of NPAS available for it, or at least a different nozzle valve that you can fit to alter the power.

found one at Milspec. Im just thinking how i will upgrade the G5 over time, is there any benefit to extending the barrel and turning the NPAS down to keep the FPS around 340? i'm not sure if i remember from somewhere that barrel length on a GBB does have a significant effect on accuracy, but i may well be mistaken

 

[Airsoft-Ed]

Nah barrel length doesn't alter the accuracy, my SCAR barrel is barely half the length of my L85 barrel, it's not even an upgraded barrel, but the SCAR's waaaayyy more accurate than the L85. My Glock is comparable to most AEGs and the barrel in that is around 5 inches long lol.

In fact the SCAR makes it seem almost like shorter wider barrels are better for accuracy in GBBs, I've been tempted to test it by fitting the SCAR's inner barrel in the L85 to see if it makes the L85 better, but I'm in two minds about it because that'd leave the outer barrel twice as long as the inner and I can imagine the BB hitting the outer barrel before it's free of it...

Might do it over the weekend anyway because I've got nothing better to do and actually have two SCAR CQB stock inner barrels, I'll see how I feel.

 

[Super64]

Just the thread I need. I've just ordered a WE Scar from Taiwan Gun which should be here by Tuesday. It's my first GBBR, but I am looking at getting more later on down the line. There's lads of helpful info in this thread and I'm sure I'll be back with questions once I've messed about with my Scar for a bit.

 

[Airsoft-Ed]

Just the thread I need. I've just ordered a WE Scar from Taiwan Gun which should be here by Tuesday. It's my first GBBR, but I am looking at getting more later on down the line. There's lads of helpful info in this thread and I'm sure I'll be back with questions once I've messed about with my Scar for a bit.

Be careful with the nozzle as they have a tendency to break at the loading nub when the magazines you're using are new.

If you fully load the magazines the pressure from the magazine spring can press against the nozzle so hard that it snaps off the bit that loads shots into the hop unit. So you can either short load the mags for a bit, or the easiest thing to do is just lock the bolt back manually before inserting the mag.

Once the mags have had a couple of hundred shots through them the springs ought to relax enough to not run as high a risk of damaging the nozzle but it's still worth being aware of.

 

[straffham]

Great thread this guys. Had a CO2 KWC mini Uzi for a while now, modded the blow back valve so it fires sub 350 and really love it, just need some more mags when I get round to it. Recently got hold of an SRC AKS74U on a half price offer at Airsoft World and have to say I'm really liking it, it may not have the best reviews ever but its well built, from steel in the main, and SRCshop sell spares for them if/when anything goes wrong. (WE are doing this gun too now.) 45 round mags are quite useful over 30 round AR mags, fires around 370fps currently with 0.2s, but planning a valve mod as with the Mini Uzi to bring it sub 350. Work so far has centred on fitting a Vector rail and a few other bits. Not skirmished it yet, but come the spring I plan too! Pic taken from AK picture thread.

View attachment 14294

(edited as posted from phone before finished lol)

 

[Spatch]

found one at Milspec. Im just thinking how i will upgrade the G5 over time, is there any benefit to extending the barrel and turning the NPAS down to keep the FPS around 340? i'm not sure if i remember from somewhere that barrel length on a GBB does have a significant effect on accuracy, but i may well be mistaken

The very best thing you can do with a G5 is leave it alone, they need nothing out of the box, you will spend needless money that can be better spent elsewhere