Kiwi Airgunners Forum : CR600w Mods www.kiwiairgunners.co.nz/ This is an XML content feed of; Kiwi Airgunners Forum : Flub's General Discussion : CR600w Mods Copyright (c) 2006-2012 Web Wiz Forums - All Rights Reserved. Mon, 18 May 2026 15:11:15 +0000 Tue, 16 Sep 2025 23:30:07 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 10.14 360 www.kiwiairgunners.co.nz/RSS_post_feed.asp?TID=607 Kiwi Airgunners Forum www.kiwiairgunners.co.nz/forum_images/logo.jpg www.kiwiairgunners.co.nz/ CR600w Mods : just remember that if you convert... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12826#12826 Author: Pauly5
Subject: 607
Posted: 16 Sep 2025 at 11:30pm

just remember that if you convert a cr600 to hpa, it becomes a "specially dangerous" airgun requiring a firearms license, regardless of power.
CO2 doesn't need an fal.
]]> Tue, 16 Sep 2025 23:30:07 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12826#12826 CR600w Mods : Regarding fittings, there is 1/8bsp... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12825#12825 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:24pm

Regarding fittings, there is 1/8bsp and also 1/8npt one of them is a tapered fitting (think the npt) but will fit into a 1/8bsp straight tapped hole (nowndont quote me on this if its the other way around or wrong.... lol]]> Tue, 16 Sep 2025 23:24:50 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12825#12825 CR600w Mods : Hpa was run through a 950psi regulator... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12824#12824 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:16pm

Hpa was run through a 950psi regulator from memory so roughly 100psi up from c02 on a good day]]> Tue, 16 Sep 2025 23:16:40 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12824#12824 CR600w Mods : Yes I did run HPA for a test and... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12823#12823 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:15pm

Yes I did run HPA for a test and as you can imagine the constantly goes almost pcp perfection.

Nearly broke my back pumping......]]> Tue, 16 Sep 2025 23:15:31 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12823#12823 CR600w Mods : Billbobnz wrote:Good evening,... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12822#12822 Author: Loud_Whisper
Subject: 607
Posted: 16 Sep 2025 at 11:12pm

Originally posted by Billbobnz Billbobnz wrote:

Good evening,

No My bulk filled cr600 hasn't been for sale and probably wont as my kids have started to use it as its a perfect rifle to teach shooting and gun safety.

First you will want to make a dummy c02 cartridge out of aluminum with a 4mm hole drilled down the centre, fit this into the rifle (alot of marking and rechecking) then drill through the pressure tube into the dummy cartridge. Widen the hole in the pressure tube to accept a 1/8 bsp gass fitting.

Pull the dummy cartridge out then drill amd tapp to a 1/8 bsp thread for the fittings.
Re assemble and then fit you c02 bulk fill using paintball fittings, either with a remote line or fitted like mine.

Mine is a little front heavy but you can get different sized bottle or positions etc to get what you want.

This is it in a quick nutshell, I hope this helps.



Brilliant, this is exactly what I wanted to find out. Thanks for this. I'll probably end up running with something pretty similar. 

Did you ever experiment with running it with HPA? 

Cheers!]]> Tue, 16 Sep 2025 23:12:49 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12822#12822 CR600w Mods : Get yourself either thread tape... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12820#12820 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:03pm

Get yourself either thread tape or loctight rated for gas for all your joins. ]]> Tue, 16 Sep 2025 23:03:09 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12820#12820 CR600w Mods : Starlings have started to snoop... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12819#12819 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:01pm

Starlings have started to snoop around, time to get shooting boys]]> Tue, 16 Sep 2025 23:01:22 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12819#12819 CR600w Mods : Good evening, No My bulk filled... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12818#12818 Author: Billbobnz
Subject: 607
Posted: 16 Sep 2025 at 11:00pm

Good evening,

No My bulk filled cr600 hasn't been for sale and probably wont as my kids have started to use it as its a perfect rifle to teach shooting and gun safety.

First you will want to make a dummy c02 cartridge out of aluminum with a 4mm hole drilled down the centre, fit this into the rifle (alot of marking and rechecking) then drill through the pressure tube into the dummy cartridge. Widen the hole in the pressure tube to accept a 1/8 bsp gass fitting.

Pull the dummy cartridge out then drill amd tapp to a 1/8 bsp thread for the fittings.
Re assemble and then fit you c02 bulk fill using paintball fittings, either with a remote line or fitted like mine.

Mine is a little front heavy but you can get different sized bottle or positions etc to get what you want.

This is it in a quick nutshell, I hope this helps.

]]> Tue, 16 Sep 2025 23:00:13 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12818#12818 CR600w Mods : Hey mate, would you mind giving... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12817#12817 Author: Loud_Whisper
Subject: 607
Posted: 16 Sep 2025 at 10:50pm

Hey mate, would you mind giving a rough rundown on how you fitted that bulk fill adaptor? Today I decided I'm tired of Co2's inconsistency and half my shots being in that long tail-off period. 


also am I right that this rifle came up for sale on Trademe a year or two ago? (if it didn't sell but you are looking to sell it again, LMK) ]]> Tue, 16 Sep 2025 22:50:47 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=12817#12817 CR600w Mods : It would have been autosol. I... www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=11878#11878 Author: Pauly5
Subject: 607
Posted: 12 Jan 2025 at 8:34am

It would have been autosol. I think I used a wooden dowel that I shaped to match and used that with autosol.
I'll try and look up photos of the valve from when I did it.
]]> Sun, 12 Jan 2025 08:34:09 +0000 www.kiwiairgunners.co.nz/forum_posts.asp?TID=607&PID=11878#11878