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Old 10-23-2012, 11:20 PM   #11 (permalink)
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Thanks again Mike for putting this thread up! I should have the metric orings on order in the next couple days (been working 11+hr days!).

Also, just to clarify, I always ship USPS 1st class mail in a bubble envelop w/ orings seperated by size in 2"x4" plastic baggies. Regardless of how many orings (or complte rebuilds) you purchase from me, shipping w/in the US is $2.46 and to Canada is $3.51 (both prices include my standard $0.51 materials fee which covers my cost of shipping materials - since I will literally sell you a single oring if that's all you want).

The rebuild itself should be in the $2.00-$2.25 range for Buna-70 and slightly higher for Buna-90. I'll post up exact prices once I have the metric sizes on order in the next few days! And for anyone who will be ordering 10x or more rebuilds I'll knock off 10% of the price.

I currently have all standard sizes in stock; here's a link to my Sale thread: http://www.mcarterbrown.com/forums/m...now-avail.html

Thanks again toymachine for taking the initiative on this AND for spurring a little business for me; I'm always excited to help out other passionate MCBers!
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O-RINGS FOR SALE (EVERY SIZE! ANY QTY!): http://www.mcarterbrown.com/forums/m...110-115-a.html

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Last edited by short304; 10-23-2012 at 11:26 PM.
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Old 10-24-2012, 12:23 AM   #12 (permalink)
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Quote:
Originally Posted by short304 View Post
I'm always excited to help out other obsessive MCBers!
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Old 10-24-2012, 06:48 PM   #13 (permalink)
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Still waiting for a quote from my intended metric oring supplier... it's local to me in Denver, so I'm hoping that should help keep the costs down for me (and you). I've been trying to find a supplier that will allow me to keep the prices for metric rings as as low as those for the standard orings I carry.
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I thought I smelled Similac on your breath at D-Day Captain Short
O-RINGS FOR SALE (EVERY SIZE! ANY QTY!): http://www.mcarterbrown.com/forums/m...110-115-a.html

My Feedback:http://www.mcarterbrown.com/forums/f...-feedback.html

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Old 10-25-2012, 07:25 PM   #14 (permalink)
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Okay I have a question before I place the order; I've got a supplier lined up w/ a quote for the dozen or so metric sizes I intend to start stocking in Buna-70. My question for you all is, do you see any benifit to having either the 1x4mm or 1x15mm orings in Buna-90? If not, I can supply the following 2x kits for the Thumper:

Thumper Rebuild Kit #1 - all Buna-70:
006: 5x ($0.40)
010: 2x ($0.16)
012: 1x ($0.08)
015: 1x ($0.10)
016: 1x ($0.10)
021: 1x ($0.10)
109: 1x ($0.12)
112: 1x ($0.12)
1x4: 3x ($0.45)
1x15: 2x ($0.36)
Kit Price: $1.99ea

Thumper Rebuild Kit #2
006 (Buna 90): 5x ($0.70)
010 (Buna 90): 2x ($0.28)
012 (Buna 90): 1x ($0.14)
015 (Buna 90): 1x ($0.14)
016 (Buna 90): 1x ($0.14)
021 (Buna 90): 1x ($0.14)
109 (Buna 90): 1x ($0.14)
112 (Buna 90): 1x ($0.14)
1x4 (Buna 70): 3x ($0.45)
1x15 (Buna 70): 2x ($0.36)
Kit Price: $2.63ea

NOTE: these prices are based on my current prices for standard sizes and the unit prices that I will be listing the metric sizes for. Shipping will remain the same no matter how many rebuilds you purchase, and will be $2.46 shipped w/in the US and $3.51 to Canada.

I will start taking a "pre-order" of sorts (ie: a list of purchasers and qty of kits via a post in this thread), once I have the metric sizes on order, but will not collect any $ till they are inspected and ready to ship. So PLEASE feel free to leave some feedback on the kits listed above, my inital question in this post, and any other suggestions.
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I thought I smelled Similac on your breath at D-Day Captain Short
O-RINGS FOR SALE (EVERY SIZE! ANY QTY!): http://www.mcarterbrown.com/forums/m...110-115-a.html

My Feedback:http://www.mcarterbrown.com/forums/f...-feedback.html

VOTE SLIM A:http://www.mcarterbrown.com/forums/m...ote-slims.html
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Old 10-25-2012, 10:39 PM   #15 (permalink)
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Those o-rings have never been a big issue for me, and I don't think their replacement is necessary in the sense that the replacement of others is (i.e. those found on the main piston/valve, reg piston/valve and actuating valve. Thanks Short, this looks great!
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Old 10-25-2012, 11:02 PM   #16 (permalink)
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Dear sir, i would like to purchase 4 of your # 2 kits PLEEEEEZE, and just for kicks one of your #1 kits...
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Old 10-26-2012, 02:00 AM   #17 (permalink)
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I will be down for some kits. What do we gain from the -90 over the -70 orings?
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Old 10-26-2012, 02:18 AM   #18 (permalink)
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Is there room on this wagon? I'm down for a couple also. Thx.
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Old 10-26-2012, 12:07 PM   #19 (permalink)
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I will be down for some kits. What do we gain from the -90 over the -70 orings?
If you have had the problem of rolling o-rings on the middle seat of the piston shaft as i have , then the 90 will more than likey solve that problem..This would or could be a short term fix for those useing 12grams and CO2.. this might not stop the piston from bending ,but at least give a higher shot count before that happens...
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Last edited by woouulf; 10-26-2012 at 12:11 PM.
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Old 10-26-2012, 07:33 PM   #20 (permalink)
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The 90 durometer, assuming we've got the right sizes (they are the right size o-rings in the sense that they're the ones Metadyne uses, but I have a feeling we might need to tweak a little to make the most of the higher durometer), might be of use to how the internal reg requires tight tolerances to work well. So that means, other than what woouulf pointed out, the 90 durometer orings will give most benefit with a high polished (not so that you take much material off, but just as smooth as possible) on the internal reg and possible main piston/valve.

at this time this is just a theory, but I'd be willing to be we're on to something here. My goal is that, by the end of next year, we figure out how to get the internal regs operating reliably and accurately negating the need for an inline reg on many Thumpers and thus allowing the gun to reach its full as envisioned potential!
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