I know that the 686-5 gave us the frame mounted FP and the MIM H&T. I know that the -6 gave us the lock.

Can anyone share what the chages were for the 686 no-dash through the 686-4?

Thanks.

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I know that the 686-5 gave us the frame mounted FP and the MIM H&T. I know that the -6 gave us the lock.

Can anyone share what the chages were for the 686 no-dash through the 686-4?

Thanks.

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For anyone interested, I found this in an old post:


586 1981 Intro
586-1 1986 Radius stud package, floating hand.
586-2 1987 Change hammer nose and associated parts.
586-M 1987 Product warning by S&W, M overstamp to indicate factory
mod for 586 and 586-1.
586-3 1988 New yoke retention system
1992 Delete 8 3/8" barrel and four-position front site.
1992 Delete nickel finish
586-4 1994 Drill and tap, synthetic grips, change rear site and
extractor.
1995 Delete square butt
1997 Delete 8 3/8" barrel, change to MIM thumb piece
586-5 1998 Change design to eliminate cylider stop stud. Change to
MIM hammer with floating firing pin, change to MIM trigger, change
internal lockworks.
1999 Nov 1999 586 discontinued
2000 Special production of 586-L Comp (3" ported black finish).

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This may help. I found info about S&W 686-X on a "THR" forum post. Click on the following web site:

http://www.thehighroad.org/showthread.php?t=158055

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There's nowt so queer as folk

Here's a copy of the S&W notice on the modification recommended for the 686-no dash and 686-1 guns. The modification is necessary only if you shoot a lot of .357 ammo through these guns. I have one friend who has a no-dash gun with no modification and he has literally put several thousands of rounds through his gun with no issues at all.


"SMITH & WESSON
MODEL 581, 586, 681, 686, or 581-1,
586-1, 681-1, 686-1 & 686CS-1, REVOLVERS

RECALL: Reports have been received from the field where the combination of a SMITH & WESSON L-FRAME 357 MAGNUM REVOLVER and some .357 Magnum ammunition has resulted in unacceptable cylinder binding. L-frame revolvers bearing model numbers:

581, 586, 681, 686, or 581-1, 586-1,
681-1, 686-1, 686CS-1

Cylinder binding can cause a failure to fire. Mishandling a revolver while freeing the cylinder can result in accidental discharge.

Cylinder binding can result from a number of causes, including characteristics of an individual revolver or the use of ammunition, which does not conform to industry pressure specifications or is particularly fast burning. Recent developments in ammunition manufacture emphasize the production of .357 Magnum ammunition with increased velocity and greater primer sensitivity.

Although there have been very few reported incidents of cylinder binding, in view of our concern for our customer's safety and the reliability of Smith & Wesson products in all circumstances, we issue the following warning:

In a situation where a failure to fire can be critical - such as law enforcement or personal protection - do not use .357 Magnum ammunition with an L-frame revolver bearing model numbers 581, 586, 681, 686 or 581-1, 586-1, 681-1, 686-1, 686CS-1 without an "M" over the model number until you have had the revolver modified.

Those who need to use their L-frame revolver under these conditions prior to modification can safely fire .38 Special caliber ammunition.

Smith & Wesson has developed a modification to improve existing L-frame revolvers. This improvement enables them to fire all .357 Magnum ammunition, without cylinder binding. Shipments of L-frame revolvers from our factory after August 21, 1987 already include this improvement.

You can check if your revolver includes this improvement by looking at the left side of the frame when the cylinder is fully open. If your revolver has been stamped either with a "2" or higher number after the basic three-digit model number or with an "M" above the model number, your revolver includes this improvement and does not need modification. If your revolver bears the model number 581, 586, 681, 686, or 581-1, 586-1, 681-1, 686-1, 686CS-1 without an "M" over the model number, it does not include this improvement and your should have your revolver modified.

Smith & Wesson will modify your L-frame revolver free of charge to eliminate the possibility of cylinder binding with .357 Magnum ammunition. Law enforcement agencies wishing to arrange for modification of L-frame revolvers should call 800-458-8469 between 9 A.M. and 6 P.M. Eastern time (MA residents call 413-734-8244). Other users should send their revolvers to a Smith & Wesson Warranty Service Center, specifying "L-frame improvement program" and enclosing their name and return address.

One of the modifications to improve the L-frame revolver is the installation of a new hammer nose. This obsoletes all old L-frame hammer noses (part numbers 4702 and 7513) and all old L-frame hammer assemblies (part numbers 3366, 3378, 3380, 3382, 3391, 4722, 4723, 4726 and 4728) in field parts inventories. Superseded parts should never be fitted into a modified revolver as this may result in malfunction. It is essential for safety that you return these obsolete L-frame hammer noses and obsolete L-frame hammer assemblies for a free exchange to:

Smith & Wesson
Service Department
2100 Roosevelt Avenue
Springfield, MA 01101

Do not return L-frame hammer-nose bushings from your spare parts inventory inasmuch as they are useable in J, N and K-frame revolvers, which are not included in this Product Warning.

We regret any inconvenience this may cause. Smith & Wesson's first concern is the safety of its products and the protection of its customers.

Great Info on th L Frame 586/686s
Thanks!!
Gary/Hk

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MightShowYouHisSmith&Wesson