Smith & Wesson Sigma

Infobox Weapon
name=Smith & Wesson SIGMA


caption=S&W SW9F
origin=flagcountry|United States
type=Semi-automatic pistol
is_ranged=yes
service=
used_by=
wars=
designer=Smith & Wesson
design_date=1993-1994
manufacturer=Smith & Wesson
unit_cost=
production_date=
number=
variants=SW40F, SW9F, SW40C, SW9C, SW40V, SW9V, SW40E, SW9E, SW40VE, SW9VE, SW9P, SW9G, SW380M, SW9M
spec_label=
weight=740 g (SW40F, SW9F) 690 g (SW40C, SW40V, SW40VE, SW40E) 700 g (SW9C, SW9V, SW9VE, SW9E, SW9G, SW9P)
length=197 mm (SW40F, SW9F) 184 mm (SW40C, SW40V, SW40VE, SW40E, SW9C, SW9V, SW9VE, SW9E, SW9G, SW9P)
part_length=114 mm (SW40F, SW9F) 102 mm (SW40C, SW40V, SW40VE, SW40E, SW9C, SW9V, SW9VE, SW9E, SW9G, SW9P)
width=33 mm
height=142 mm (SW40F, SW9F)
diameter=
crew=
cartridge=.40 S&W (SW40F, SW40C, SW40V, SW40VE, SW40E) 9x19mm Parabellum (SW9F, SW9C, SW9V, SW9VE, SW9E, SW9G, SW9P) .380 ACP (SW380M)
caliber=
barrels=
action=Short recoil
rate=
velocity=
range=
max_range=
feed=16-round box magazine (SW40F, SW9C, SW9V, SW9VE, SW9E, SW9G, SW9P) 17-round box magazine (SW9F) 15-round box magazine (SW40C, SW40V, SW40VE, SW40E)
sights=Fixed 3-dot notch sights

The Sigma is Smith & Wesson's venture into using synthetic materials in gun construction, using high-strength polymer material for the frame.

Created in 1994, it also incorporates the currently-fashionable self-cocking or double-action only firing mechanism, so that the pistol can be fired without delay or preparation. The basic model is chambered for the .40 S&W cartridge, but it is also available in 9 x 19mm Parabellum and a sub-compact model in .380 ACP was also manufactured. A limited amount of these guns were also chambered for the .357sig cartridge.

The Sigma series pistols are so similar to the competing Glock pistols that Glock sued Smith & Wesson for patent infringement. The case was settled out of court in 1997, with S&W agreeing to make alterations to the Sigma design and pay an undisclosed amount to Glock. [ [http://findarticles.com/p/articles/mi_m3197/is_n6_v42/ai_19767928 Judge dismisses lawsuit against gunmaker, S&W and Glock settle suit | Shooting Industry | Find Articles at BNET ] ]

See also

*Smith & Wesson

References

External links

* [http://www.collins.co.uk/books.aspx?book=30693 http://www.collins.co.uk/books.aspx?book=30693]