Smith & Wesson Sigma Instructions Manual

FIELD STRIPPING DISASSEMBLY CONT’D.
21
BARREL
LUG
FIGURE 15FIGURE 16
FIGURE 17
FIELD STRIPPING
REASSEMBLY
•With the rear of the slide pointed in a safe direction and the 
bottom of the slide turned up, replace the barrel in the slide 
so the muzzle is flush with the end of the slide and the barrel 
lug is turned up (away from the ejection port). Replace the 
recoil spring on the recoil spring guide. Insert the spring end 
of the recoil spring guide assembly in the guide housing.
(Figures 18 & 19)
Grasp...

22
DISASSEMBLY (see Figure 23)
1. Using a drift punch, depress floorplate catch (1) through hole 
in magazine floorplate (2).
2. Slide magazine floorplate (2) out of magazine tube (3) 
while holding floorplate catch (1) in the magazine tube (3).
3. Remove floorplate catch (1) and magazine spring (4) out 
through bottom of magazine tube (3).
MAGAZINE DISASSEMBLY 
ASSEMBLY
1. Install magazine spring (4) and floorplate catch (1) into the 
magazine tube (3) in exactly the same orientation as they 
were in...

23
(1)
(2) (3)(4) FIGURE 23
FIELD STRIPPING REASSEMBLY CONT’D.
LUBRICATION
There are six (6) lubrication points where a single drop of
firearms lubricant should be applied. This will assure proper
lubrication of your sigma series pistol. Care should be taken not
to over-lubricate. Excess lubricant can collect large quantities of
unburnt powder and carbon residue, which could interfere with
proper functioning of the pistol.
FIGURE 25FIGURE 24 

CLEANING AND
MAINTENANCE
!!  WARNING  !!
Ensure your pistol is unloaded before beginning to clean it.
At all times follow the basic rules of safe gun handling.
Your pistol is a precision instrument and to insure reliable 
function, it is necessary to follow a routine maintenance 
procedure. After firing your pistol, be sure to unload it following
the procedure outlined in the section entitled “Unloading” on
page 19 before any cleaning or maintenance procedure. Your
pistol should be cleaned by brushing...

25
SERVICE,
SHIPPING & PARTS
SERVICE
Should your Smith & Wesson firearm require service, it should
be returned to Smith & Wesson in its original case or in a
similarly secure container. It is not necessary to take the gun to
a dealer for shipment. However, before shipping your firearm,
call or e-mail our Customer Service Dept. for authorization and
shipping instructions.
Before shipping your handgun, ensure that the firearm is
unloaded, package it securely, and do NOTship any ammunition.
The package must...

26
SHIPPINGWhen shipping a firearm, it is most important that you comply
with federal, state, and local laws and regulations. The following
guidelines are meant to help, but you must seek assistance from
the appropriate authorities if necessary.
•Check magazines and chambers to ensure that they 
are unloaded. Do not ship ammunition.
•Do not attempt toMAILa handgun; only federally 
licensed dealers may mail a firearm.
•If your firearm must be replaced, it may be necessary 
to ship the replacement to a...

27
WARRANTY
For Owners Within The United States
This warranty is granted by Smith & Wesson, 2100 Roosevelt
Avenue, P.O. Box 2208, Springfield, MA  01102-2208.
This warranty is effective from the date of purchase after
February 1, 1989 and applies to the original owner of any
handgun purchased after that date. With respect to such
handguns, this warranty supersedes any and all other
warranties.
Smith & Wesson handguns are warrantied to be free from defects
in material and workmanship. Any such defects of...

28
EXTENDED
SERVICE POLICY
For Owners Within The United States
Even after the warranty period has expired, Smith & Wesson will
repair, without charge, any handgun purchased by the original
owner on or after February 1, 1989 that is found to have defect in
material or workmanship. Eligibility for this extended service 
policy requires returning the Product Registration Card within thir-
ty days of purchase. A copy of the bill of sale in the owner’s name
and the sales receipt should accompany the handgun....

29
COMPONENT PARTS
View Description
1Frame
2Magazine Catch
3Frame Plug
4Magazine Follower
5Magazine Spring
6Magazine Butt Plate Catch
7Magazine Butt Plate
8Magazine Tube
9Barrel Stop Spring
10 Take Down Catch/Barrel Stop
11 Ejector
12 Sear Housing Block Assembly
13 Trigger Bar Assembly
14 Locking BlockView Description
15 Slide Stop Lever Assembly
16 Trigger Pin
17 Sear Housing Block
Assembly Pin
18 Safety Plunger Spring
19 Striker Safety Plunger
20 Extractor
21 Striker Assembly
22 Extractor Spring...

30
NOTES