doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Charles Dailey .410 made by Miroku

I obtained a hammer spring for a .410 Miruko from Widners a few years ago and managed to install it. I tried to buy the tool they showed on their website for installing it, but they did not have one. the guy I talked to said he was thinking about making some more, but declined to make any promise. I made one that is like the tool you can buy to compress the top lever spring in a MX-8, it helped a bit.

Widners or Western Gun Parts is likely your best bet, though I've not contacted either in some time. The Springs are indeed leaf or 'V' springs and there are two different sizes; one for the smaller gauges and another for the 12 ga. guns. Both vendors are well aware of the difs., but it never hurts to confirm that with whomever you speak to. It would make good sense to have a set of calipers and the old one on hand to be sure you are both speaking the same language, JIC you get someone not that familiar w/them as they 'look' the same & your friend is going to need the smaller ones.

In the FWIW, dept. there were also several iterations of ejectors utilized in the guns so fitted, but the hammer springs were the same throughout, excepting the size difs. already mentioned. Installing them is fair brutal, even with the proper special tool. Be prepared for a bit of frustration, before success.

Thanks for all replys, I have hit dead end, but am now encouraged by the two
Above replys and will check out tomorrow.

The link to description about making the spring in England was a help understanding what I am up against.
My friend wants it fixed and said pretty much at any cost..I told him to buy new gun and he still wants it fixed

Good luck to your friend, ppd. Stubbornness can be expensive.

SRH

B&C Gunsmithing Lake Havasu AZ Bob Storms 928 854 8209

Amazing; international bulletin board and you got a local answer. You coulda just gone to the cafe and had coffee...Geo

To all Miroku owners, Bob Storms in Lake Havasu, Arizona
928 854 8209 has the parts and knows how to fix them. Bottom Spring
is the hardest, top spring is easier.B&C Gunsmithing

Thanks for all the help

Pat

My early Citori has an action like the one shown in the spring making video but it definitely has COIL springs. I think that at some point Miroku adopted the Niettner system and went over to coil springs working vertically in the action recesses.

Perhaps it is worth making sure whether the springs are coil or V. Coil springs on my Citori are dead easy to remove and replace. Easier than behind-the-hammer type of spring.

A pretty good internal design history here (not the installation tool), if it hasn't already been posted.

http://www.leeroysramblings.com/Gun%20Articles/Miroku_O-U_shotguns.html

Bob Storms repaired the gun by replacing
Both top and bottom v springs. Repaair time about 3 weeks, super nice man to deal with and reasonable cost. He has the parts and has been repairing these guns for years. He is the only man in USA that can do this, because I looked and looked