Custom Crosman 2250b
Printed From: Kiwi Airgunners
Category: General
Forum Name: Flub's General Discussion
Forum Description: General discussion goes in here.
URL: www.kiwiairgunners.co.nz/forum_posts.asp?TID=660
Printed Date: 03 Nov 2025 at 6:25pm
Software Version: Web Wiz Forums 10.14 - http://www.webwizforums.com
Topic: Custom Crosman 2250b
Posted By: Billbobnz
Subject: Custom Crosman 2250b
Date Posted: 15 Aug 2022 at 7:24am
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Just got back the parts form the guy down the road who was lathing up some parts for this build. Here is what it is up to. Modified a CR600w suppressor to fit the barrel what a difference it make to the sound! Steel breech kit, dovetail to Picatinny scope mount, high 30mm scope rings for the Centrepoint side focus scope (not sure if this scope is an overkill yet) but I have another one on my CR600w and I absolutely love them. Next the bulk fill tank that turns this into an AR-15 looking rifle (connection from tank to rifle not complete as I need a custom high pressure hose so that will be next weeks job) Also need some pistol grips but may down the track do a carbon fiber grip when I have time.  |
Replies:
Posted By: Billbobnz
Date Posted: 15 Aug 2022 at 7:30am
| I haven't ruled out machining the steel breech to fit a CR600w magazine yet either. I wish I had my Solidworks cad license still to draw one up and get it machined from scratch. |
Posted By: kruzaroad
Date Posted: 15 Aug 2022 at 2:19pm
| Nice, looking good. Be keen on results when ya test it. |
Posted By: J-S
Date Posted: 16 Aug 2022 at 4:22am
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Thats looking cool! They are a great gun to modify. If you do carbon fibre greip, see if you can get some carbon fibre look vinyl and wrap the co2 bottle to match ------------- https://www.instagram.com/js_airguns/" rel="nofollow - J S Airguns Air Arms TX200('s) Theoben Sirocco HW77 FWB 300s Webley Patriot One or two others... Current projects: Too many.. |
Posted By: Pauly5
Date Posted: 16 Aug 2022 at 5:09am
| Good stuff. Will the bottle connect through the back, or will you use a hose to the front? |
Posted By: Billbobnz
Date Posted: 16 Aug 2022 at 6:00am
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You all know I love my carbon haha, wondering about either wraping the bottle or doing a carbon sleeve with butstock ... Options are endless just need time. Bottle will connect with hose up the LHS to a bulk fill adapter. |
Posted By: Pauly5
Date Posted: 16 Aug 2022 at 7:04am
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I wonder if you could make the whole hammer system hollow, like Air Arms and put a pipe straight through into the valve and seal off the front?? Would be a great project. |
Posted By: Billbobnz
Date Posted: 16 Aug 2022 at 7:54am
| Yes I have wondered that. Also wandered how the air force texam etc do it too. Or they might have a reversed valve and hammer system |
Posted By: Billbobnz
Date Posted: 05 Oct 2022 at 12:26pm
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Well had the day off and ended up fitting the bulk fill system on my 2250 braided hose and fittings look a bit too big so its now got a steampunk look with brass fittings. will paint them matt black in due course. Pressure gauge working firing well, now off pest controlling. Drilling this hole may or may not have voided the warranty LOL     Proudly beside my bulk filled and modified cr600w  |
Posted By: J-S
Date Posted: 05 Oct 2022 at 2:44pm
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Looking good! Just needs a butt stock that fits on the bottle ------------- https://www.instagram.com/js_airguns/" rel="nofollow - J S Airguns Air Arms TX200('s) Theoben Sirocco HW77 FWB 300s Webley Patriot One or two others... Current projects: Too many.. |
Posted By: kruzaroad
Date Posted: 05 Oct 2022 at 4:30pm
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Sweet. Youll be stoked to have it running on bulk. Steam punk is in. Throw some for no reason at all cogs on it and paint it copper and brass 😁😊 Im assuming you get no barrel lift on cr600. Whats it like for front end weight. Nice work. |
Posted By: Billbobnz
Date Posted: 21 Oct 2022 at 5:00pm
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Installed a new scope today. Discovery VT-R 3-9X40AC Very clear glass edge to edge with no distortion. I love the pellet storage on left of elevation turret, saves fumbling around between shots (only holds .22 size pellets) The scope is sitting too low to get a clear sight through so will change them to high mounts asap. 
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Posted By: kruzaroad
Date Posted: 23 Oct 2022 at 2:11am
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I'll have a look later today, I think I've got a taller set of scope mounts in car. what size tube on your scope. Interesting cap on scope, it come with scope? I'm looking for a faster way to hold a follow up pellet than taking tin out of pocket. Don't want loose in pouch and looking at pellet pen. is it side ao or is that just for pellets. |
Posted By: Pauly5
Date Posted: 23 Oct 2022 at 3:20am
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That looks great. Did you tap into the side of a canister, or make an adapter? To hold pellets close to the breech, I have cut a strip of dense foam, like jandal material, with undersized holes and pellets pushed in. Fairly basic, but it works. |
Posted By: kruzaroad
Date Posted: 23 Oct 2022 at 3:37am
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Cheers Pauly got a piece of yoga mat I could use. ( using old camping sleeping mat in tins, found soldering iron makes perfect holes) Found scope mounts billbob dimension below. 
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Posted By: Billbobnz
Date Posted: 23 Oct 2022 at 4:15pm
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Sorry been busy rotary hoeing the garden for my wife - I promised a vegetable garden 6 years ago .... Hahaha better late than never... Those scope mounts look perfect except I just realized that I need weaver style as it needs to go onto the 11mm to 20mm adapter to get the correct hight The scope is fixed parallax so just the pellet holder on that side. I love my side focus scopes over your std AO type. I've done the foam trick on my Hatsan .25 and that works awesome. Yes I got the guy down the road to make an adapter that the bulk fill fillings go into. I did try a canister but the wall thickness is to thin |
Posted By: Billbobnz
Date Posted: 23 Oct 2022 at 4:15pm
| Oh and the front scope cap came with the scope, the rear one isnt flip up that is a bit of a pain |
Posted By: Billbobnz
Date Posted: 24 Nov 2023 at 3:42am
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This has been gathering far too much dust. Finally gat an on/off valve fitted on the CO2 bottle so I can turn it off between use as there is a very slow leak somewhere. Just need some higher scope mounts and I'm away 
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Posted By: Pauly5
Date Posted: 24 Nov 2023 at 4:07am
| Looks good. Do you reckon machining the steel breech to accept a mag would work? I might try it as I have marauder mags. |
Posted By: kruzaroad
Date Posted: 24 Nov 2023 at 5:05am
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Got these if your interested. Holding a 42mm lens with clearance. Inch tube. Had to file recoil lock screw down a little. Not wanted or used by me. Q  |
Posted By: Billbobnz
Date Posted: 24 Nov 2023 at 7:20am
| I've got a 30m tube scope on it at the moment. I've just found 1 high 25mm mount in a box of bits but can't find the other. |
Posted By: Billbobnz
Date Posted: 25 Nov 2023 at 7:06am
Horrible weather here today and been playing with this set up. Changed to the crossbow red dot sight with the 3 reference dots and I think I will keep it like this. Hoping for fine weather tomorrow to dial it in.
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Posted By: Mic
Date Posted: 26 Nov 2023 at 1:42am
| sweet, now just fit a gravmag---Mic |