SIG Sauer Pistols

SIG Sauer P320

Specs, variants & prices

SIG Sauer currently offers the P320 pistol, chambered in 45 Auto, 9mm Luger and 9mm Luger / 40 S&W / 357 SIG. Retailers carry 51 factory configurations, and you'll find every one in the table below. Barrels run from 3.6" to 5.5". Of the 51 versions, 29 are optics-ready; 3 use SIG's SIG-LOC optic mounting system; 2 use SIG's SIG-LOC optic mounting system, with a factory ROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed; 2 ship with a ROMEO-RS PRO w/ XRAY3 Day/Night Sights installed; 2 are milled for Leupold DeltaPoint Pro-pattern dots; 2 ship with a ROMEO-X installed; one ships with a ROMEO-X PRO w/ XRAY3 Day/Night Sights installed; one ships with a ROMEO-X Pro installed; and 5 aren't set up for an optic. SIG Sauer's suggested retail prices run from $359.99 to $2,479.99, and stores set their own prices from there.

See prices for every version 🔔 Deal alert for the P320

What versions of the SIG Sauer P320 are there?

51 current versions. Specs and measurements are SIG Sauer's own.

Optics

Version	Prices	Optics	Model / part #	Caliber	Capacity	Barrel	Overall length	Weight	Finish	MSRP	CA	MA	Status
P320 COMPACT2x 9rd magazines	See prices	No	320C-45-BSS	45 Auto	9	3.9"	7.2"	25.8 oz	Nitron	$649.99	—	—	Current
P320 COMPACT2x 10rd magazines	See prices	Optic-ready	320C-9-BSSP-MS-MA	9mm Luger	10	3.9"	7.25"	26.6 oz w/ Magazine	Nitron	$515	—	Yes	Current
P320 FCU	See prices		8900160	9mm Luger / 40 S&W / 357 SIG	—	—	4.25"	—	Gold	$359.99	—	—	Current
P320 FCU	See prices		8900161	9mm Luger / 40 S&W / 357 SIG	—	—	4.25"	—	Black	$359.99	—	—	Current
P320 FULL-SIZE2x 17rd magazines	See prices	Optic-ready	320F-9-BSSP	9mm Luger	17	4.7"	8"	28.3 oz w/ Magazine	Nitron	$515	—	—	Current
P320 FULL-SIZE2x 10rd magazines	See prices	Optic-ready	320F-9-BSSP-10	9mm Luger	10	4.7"	8"	28.3 oz w/ Magazine	Nitron	$515	—	—	Current
P320 M.O.D.3x 21rd magazines	See prices	Optic-ready	320XF-9-MOD	9mm Luger	21	3.9"	8.3"	33.2 oz	Matte Black DLC	$929.99	—	—	Current
P320 M.O.D.3x 10rd magazines	See prices	Optic-ready	320XF-9-MOD-10	9mm Luger	10	3.9"	8.3"	33.2 oz	Matte Black DLC	$929.99	—	—	Current
P320 RXP XCOMPACT2x 15rd magazines	See prices	SIG-LOCROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed	320XC-9-BXR3-RXSL	9mm Luger	15	3.6"	7.0"	25.8 oz	Nitron	$1,299.99	—	—	Current
P320-AXG LEGION3x 21rd magazines	See prices	Optic-ready	320AXGF-9-LEGION	9mm Luger	21	3.9"	8.2"	36.1 oz	LEGION Gray Cerakote	$1,399.99	—	—	Current
P320-AXG LEGION3x 10rd magazines	See prices	Optic-ready	320AXGF-9-LEGION-10	9mm Luger	10	3.9"	8.2"	36.1 oz	LEGION Gray Cerakote	$1,399.99	—	—	Current
P320-AXG LEGION3x 21rd magazines	See prices	SIG-LOC	320AXGF-9-LEGION-RXSL	9mm Luger	21	3.9"	8.2"	36.2 oz w/ Magazine	LEGION Gray Cerakote	$1,399.99	—	—	Current
P320-AXG LEGION3x 10rd magazines	See prices	SIG-LOC	320AXGF-9-LEGION-RXSL-10	9mm Luger	10	3.9"	8.2"	36.2 oz w/ Magazine	LEGION Gray Cerakote	$1,399.99	—	—	Current
P320-AXG LEGION3x 21rd magazines	See prices	Optic-ready	320AXGF-9-LEGION-RXX	9mm Luger	21	3.9"	8.2"	36.2 oz w/ Magazine	LEGION Gray Cerakote	$1,750	—	—	Current
P320-AXG LEGION3x 10rd magazines	See prices	Optic-ready	320AXGF-9-LEGION-RXX-10	9mm Luger	10	3.9"	8.2"	36.2 oz w/ Magazine	LEGION Gray Cerakote	$1,749.99	—	—	Current
P320-FLUX LEGION2x 30rd magazines	See prices	Optic-ready	320FLUX-9-LEGION	9mm Luger	30	3.9"	10.9"	49.2 oz w/ Magazine	LEGION Cerakote	$1,499.99	—	—	Current
P320-FLUX LEGION2x 30rd, 2x 21rd magazines	See prices	Optic-ready	320FLUX-9-TACOPS-TB	9mm Luger	21/30	5.5"	10.9" [Collapsed]	49.2 oz w/ Magazine	Nitron	$1,499.99	—	—	Current
P320-NIGHTSHIFT2x 21rd magazines	—	SIG-LOC	320SXGF-9-BXR3-COMP-BLUE	9mm Luger	21	4.6"	8.5"	47.1 oz w/ Magazine	Platinum Cerakote	$2,479.99	—	—	Current
P320-SPECTRE COMP BLACKOUT2x 21rd magazines	See prices	Optic-ready	P320V004	9mm Luger	21	4.6"	8.5"	41.8 oz	Blackout Cerakote	$1,399.99	—	—	Current
P320-SPECTRE COMP BLACKOUT2x 10rd magazines	See prices	Optic-ready	P320V004-10	9mm Luger	10	4.6"	8.5"	41.8 oz	Blackout Cerakote	$1,399.99	—	—	Current
P320-SXG RESERVE3x 21rd magazines	See prices	Optic-ready	320SXGF-9-CW-RES	9mm Luger	21	3.9"	8.2"	46.2 oz w/ Magazine	High Polish DLC	$2,199.99	—	—	Current
P320-SXG RESERVE3x 10rd magazines	See prices	Optic-ready	320SXGF-9-CW-RES-10	9mm Luger	10	3.9"	8.2"	46.2 oz w/ Magazine	High Polish DLC	$2,199.99	—	—	Current
P320-XCARRY2x 17rd magazines	See prices	No	320XCA-9-BXR3-R2	9mm Luger	17	—	7.4"	26.5 oz	Nitron	$862	—	—	Current
P320-XCARRY2x 17rd magazines	See prices	No	320XCA-9-BXR3P-R2	9mm Luger	17	3.9"	7.4"	26.5 oz	Nitron	$749.99	—	—	Current
P320-XCARRY2x 10rd magazines	See prices	No	320XCA-9-BXR3P-R2-10	9mm Luger	10	3.9"	7.4"	26.5 oz	Nitron	$749.99	—	—	Current
P320-XCARRY LEGION3x 17rd magazines	See prices	Optic-ready	320XCA-9-LEGION-TB-R2	9mm Luger	17	4.6"	7.2"	40.5 oz	LEGION Gray	$1,049.99	—	—	Current
P320-XCOMPACT2x 15rd magazines	See prices	Optic-ready	320XC-9-BXR3P-R2	9mm Luger	15	3.6"	7.0"	25.3 oz	Nitron	$699.99	—	—	Current
P320-XCOMPACT2x 10rd magazines	See prices	Optic-ready	320XC-9-BXR3P-R2-10	9mm Luger	10	3.6"	7.0"	25.3 oz	Nitron	$699.99	—	—	Current
P320-XCOMPACT2x 15rd magazines	See prices	Factory dotROMEO-RS PRO w/ XRAY3 Day/Night Sights installed	320XC-9-BXR3P-RS	9mm Luger	15	3.6"	7.0"	25.5 oz w/ Magazine	Nitron	$1,049.99	—	—	Current
P320-XFIVE DH33x 21rd magazines	See prices	Optic-ready	320X5-9-DH3	9mm Luger	21	5"	7.1"	43.5 oz	Coyote Tan	$1,299.99	—	—	Current
P320-XFIVE LEGION3x 17rd magazines	See prices	Optic-ready	320X5-9-LEGION-R2	9mm Luger	17	5"	7.1"	43.5 oz	LEGION Gray	$1,019.99	—	—	Current
P320-XFIVE LEGION3x 10rd magazines	See prices	Optic-ready	320X5-9-LEGION-R2-10	9mm Luger	10	5"	7.1"	43.5 oz	LEGION Gray	$1,029.99	—	Yes	Current
P320-XFIVE LEGION CALIFORNIA3x 10rd magazines	See prices	Optic-ready	320X5-9-LEGION-MS-CA	9mm Luger	10	5"	8.5"	43.5 oz w/ Magazine	Elite Cerakote LEGION Gray	$959	Yes	—	Current
P320-XFIVE SXG3x 21rd magazines	See prices	Optic-ready	320SXG5-9-STAS	9mm Luger	21	5"	8.5"	49.8 oz w/ Magazine	Stainless Bead Blast	$1,819.99	—	—	Current
P320-XFIVE SXG3x 10rd magazines	See prices	Optic-ready	320SXG5-9-STAS-10	9mm Luger	10	5"	8.5"	49.8 oz w/ Magazine	Stainless Bead Blast	$1,819.99	—	—	Current
P320-XFULL2x 17rd magazines	See prices	SIG-LOCROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed	320XF-9-BXR3-RXSL	9mm Luger	17	4.7"	8"	30 oz	Nitron	$1,299.99	—	—	Current
P320-XFULL2x 17rd magazines	See prices	Factory dotROMEO-X PRO w/ XRAY3 Day/Night Sights installed	320XF-9-BXR3-RXX	9mm Luger	17	4.7"	8.2"	28.7 oz w/ Magazine	Nitron	$1,049.99	—	—	Current
P320-XFULL2x 10rd magazines	See prices	Optic-ready	320XF-9-BXR3-RXX-10	9mm Luger	10	4.7"	8.2"	28.7 oz w/ Magazine	Nitron	$1,049.99	—	—	Current
P320-XFULL2x 17rd magazines	See prices	Optic-ready	320XF-9-BXR3P-R2	9mm Luger	17	4.7"	8.2"	29.6 oz	Nitron	$699.99	—	—	Current
P320-XFULL2x 10rd magazines	See prices	Optic-ready	320XF-9-BXR3P-R2-10	9mm Luger	10	4.7"	8.2"	29.6 oz	Nitron	$699.99	—	—	Current
P320-XFULL2x 17rd magazines	See prices	Factory dotROMEO-RS PRO w/ XRAY3 Day/Night Sights installed	320XF-9-BXR3P-RS	9mm Luger	17	4.7"	8.2"	28.7 oz w/ Magazine	Nitron	$1,049.99	—	—	Current
P320-XFULL CALIFORNIA2x 10rd magazines	See prices	Optic-ready	320XF-9-BXR3P-MS-CA	9mm Luger	10	4.7"	8.2"	29.6 oz w/ Magazine	Nitron	$749.99	Yes	—	Current
P320 Compact 9mm Pistol2x 15rd magazines	—	No	320C-9-BSS-MS	9mm Luger	15	3.9"	—	26 oz	Black	—	—	—	—
P320 M.O.D. 9mm Pistol3x 21rd magazines	—		320XF-9-MAXM	9mm Luger	21	3.9"	—	33.2 oz	Black	—	—	—	—
P320 M.O.D. Comp Optic Ready 9mm Pistol with Romeo-X3x 21rd magazines	See prices		320XF-9-MOD-RXSL	9mm Luger	21	3.9"	—	—	Black	—	—	—	—
P320 M.O.D. Optic Ready 9mm Pistol3x 21rd magazines	See prices	Optic-ready	320XF9MAXM	9mm Luger	21	3.9"	—	33.3 oz	Black	—	—	—	—
P320 M.O.D. Optic Ready 9mm Pistol3x 10rd magazines	See prices	DPP cut	320XF9MAXM10	9mm Luger	10	3.9"	—	—	Black	—	—	—	—
P320 X-Carry Legion Optic Ready 9mm Pistol with Threaded Barrel3x 10rd magazines	See prices	DPP cut	320XCA-9-LEGION-TB-R2-10	9mm Luger	10	4.6"	—	—	Grey	—	—	—	—
P320 X-Compact Optic Ready 9mm Pistol with Romeo-X2x 10rd magazines	—	Factory dotROMEO-X installed	320XC-9-BXR3-RXSL-10	9mm Luger	10	3.6"	—	25.8 oz	Black	—	—	—	—
P320 X-Compact Optic Ready 9mm Pistol with Romeo-X Pro2x 10rd magazines	See prices	Factory dotROMEO-X Pro installed	320XC9BXR3RXX10	9mm Luger	10	3.6"	—	—	Black	—	—	—	—
P320 X-Full Optic Ready 9mm Pistol with Romeo-X2x 10rd magazines	—	Factory dotROMEO-X installed	320XF-9-BXR3-RXSL-10	9mm Luger	10	4.7"	—	30 oz	Black	—	—	—	—

P320 COMPACT
2x 9rd magazines
See prices
Optics
No
Model / part #
320C-45-BSS
Caliber
45 Auto
Capacity
9
Barrel
3.9"
Overall length
7.2"
Weight
25.8 oz
Finish
Nitron
MSRP
$649.99
CA
—
MA
—
Status
Current
P320 COMPACT
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320C-9-BSSP-MS-MA
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
7.25"
Weight
26.6 oz w/ Magazine
Finish
Nitron
MSRP
$515
CA
—
MA
Yes
Status
Current
P320 FCU
See prices
Optics
Model / part #
8900160
Caliber
9mm Luger / 40 S&W / 357 SIG
Capacity
—
Barrel
—
Overall length
4.25"
Weight
—
Finish
Gold
MSRP
$359.99
CA
—
MA
—
Status
Current
P320 FCU
See prices
Optics
Model / part #
8900161
Caliber
9mm Luger / 40 S&W / 357 SIG
Capacity
—
Barrel
—
Overall length
4.25"
Weight
—
Finish
Black
MSRP
$359.99
CA
—
MA
—
Status
Current
P320 FULL-SIZE
2x 17rd magazines
See prices
Optics
Optic-ready
Model / part #
320F-9-BSSP
Caliber
9mm Luger
Capacity
17
Barrel
4.7"
Overall length
8"
Weight
28.3 oz w/ Magazine
Finish
Nitron
MSRP
$515
CA
—
MA
—
Status
Current
P320 FULL-SIZE
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320F-9-BSSP-10
Caliber
9mm Luger
Capacity
10
Barrel
4.7"
Overall length
8"
Weight
28.3 oz w/ Magazine
Finish
Nitron
MSRP
$515
CA
—
MA
—
Status
Current
P320 M.O.D.
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-MOD
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
8.3"
Weight
33.2 oz
Finish
Matte Black DLC
MSRP
$929.99
CA
—
MA
—
Status
Current
P320 M.O.D.
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-MOD-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
8.3"
Weight
33.2 oz
Finish
Matte Black DLC
MSRP
$929.99
CA
—
MA
—
Status
Current
P320 RXP XCOMPACT
2x 15rd magazines
See prices
Optics
SIG-LOCROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed
Model / part #
320XC-9-BXR3-RXSL
Caliber
9mm Luger
Capacity
15
Barrel
3.6"
Overall length
7.0"
Weight
25.8 oz
Finish
Nitron
MSRP
$1,299.99
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320AXGF-9-LEGION
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
8.2"
Weight
36.1 oz
Finish
LEGION Gray Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320AXGF-9-LEGION-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
8.2"
Weight
36.1 oz
Finish
LEGION Gray Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 21rd magazines
See prices
Optics
SIG-LOC
Model / part #
320AXGF-9-LEGION-RXSL
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
8.2"
Weight
36.2 oz w/ Magazine
Finish
LEGION Gray Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 10rd magazines
See prices
Optics
SIG-LOC
Model / part #
320AXGF-9-LEGION-RXSL-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
8.2"
Weight
36.2 oz w/ Magazine
Finish
LEGION Gray Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320AXGF-9-LEGION-RXX
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
8.2"
Weight
36.2 oz w/ Magazine
Finish
LEGION Gray Cerakote
MSRP
$1,750
CA
—
MA
—
Status
Current
P320-AXG LEGION
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320AXGF-9-LEGION-RXX-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
8.2"
Weight
36.2 oz w/ Magazine
Finish
LEGION Gray Cerakote
MSRP
$1,749.99
CA
—
MA
—
Status
Current
P320-FLUX LEGION
2x 30rd magazines
See prices
Optics
Optic-ready
Model / part #
320FLUX-9-LEGION
Caliber
9mm Luger
Capacity
30
Barrel
3.9"
Overall length
10.9"
Weight
49.2 oz w/ Magazine
Finish
LEGION Cerakote
MSRP
$1,499.99
CA
—
MA
—
Status
Current
P320-FLUX LEGION
2x 30rd, 2x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320FLUX-9-TACOPS-TB
Caliber
9mm Luger
Capacity
21/30
Barrel
5.5"
Overall length
10.9" [Collapsed]
Weight
49.2 oz w/ Magazine
Finish
Nitron
MSRP
$1,499.99
CA
—
MA
—
Status
Current
P320-NIGHTSHIFT
2x 21rd magazines
—
Optics
SIG-LOC
Model / part #
320SXGF-9-BXR3-COMP-BLUE
Caliber
9mm Luger
Capacity
21
Barrel
4.6"
Overall length
8.5"
Weight
47.1 oz w/ Magazine
Finish
Platinum Cerakote
MSRP
$2,479.99
CA
—
MA
—
Status
Current
P320-SPECTRE COMP BLACKOUT
2x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
P320V004
Caliber
9mm Luger
Capacity
21
Barrel
4.6"
Overall length
8.5"
Weight
41.8 oz
Finish
Blackout Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-SPECTRE COMP BLACKOUT
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
P320V004-10
Caliber
9mm Luger
Capacity
10
Barrel
4.6"
Overall length
8.5"
Weight
41.8 oz
Finish
Blackout Cerakote
MSRP
$1,399.99
CA
—
MA
—
Status
Current
P320-SXG RESERVE
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320SXGF-9-CW-RES
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
8.2"
Weight
46.2 oz w/ Magazine
Finish
High Polish DLC
MSRP
$2,199.99
CA
—
MA
—
Status
Current
P320-SXG RESERVE
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320SXGF-9-CW-RES-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
8.2"
Weight
46.2 oz w/ Magazine
Finish
High Polish DLC
MSRP
$2,199.99
CA
—
MA
—
Status
Current
P320-XCARRY
2x 17rd magazines
See prices
Optics
No
Model / part #
320XCA-9-BXR3-R2
Caliber
9mm Luger
Capacity
17
Barrel
—
Overall length
7.4"
Weight
26.5 oz
Finish
Nitron
MSRP
$862
CA
—
MA
—
Status
Current
P320-XCARRY
2x 17rd magazines
See prices
Optics
No
Model / part #
320XCA-9-BXR3P-R2
Caliber
9mm Luger
Capacity
17
Barrel
3.9"
Overall length
7.4"
Weight
26.5 oz
Finish
Nitron
MSRP
$749.99
CA
—
MA
—
Status
Current
P320-XCARRY
2x 10rd magazines
See prices
Optics
No
Model / part #
320XCA-9-BXR3P-R2-10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
7.4"
Weight
26.5 oz
Finish
Nitron
MSRP
$749.99
CA
—
MA
—
Status
Current
P320-XCARRY LEGION
3x 17rd magazines
See prices
Optics
Optic-ready
Model / part #
320XCA-9-LEGION-TB-R2
Caliber
9mm Luger
Capacity
17
Barrel
4.6"
Overall length
7.2"
Weight
40.5 oz
Finish
LEGION Gray
MSRP
$1,049.99
CA
—
MA
—
Status
Current
P320-XCOMPACT
2x 15rd magazines
See prices
Optics
Optic-ready
Model / part #
320XC-9-BXR3P-R2
Caliber
9mm Luger
Capacity
15
Barrel
3.6"
Overall length
7.0"
Weight
25.3 oz
Finish
Nitron
MSRP
$699.99
CA
—
MA
—
Status
Current
P320-XCOMPACT
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320XC-9-BXR3P-R2-10
Caliber
9mm Luger
Capacity
10
Barrel
3.6"
Overall length
7.0"
Weight
25.3 oz
Finish
Nitron
MSRP
$699.99
CA
—
MA
—
Status
Current
P320-XCOMPACT
2x 15rd magazines
See prices
Optics
Factory dotROMEO-RS PRO w/ XRAY3 Day/Night Sights installed
Model / part #
320XC-9-BXR3P-RS
Caliber
9mm Luger
Capacity
15
Barrel
3.6"
Overall length
7.0"
Weight
25.5 oz w/ Magazine
Finish
Nitron
MSRP
$1,049.99
CA
—
MA
—
Status
Current
P320-XFIVE DH3
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320X5-9-DH3
Caliber
9mm Luger
Capacity
21
Barrel
5"
Overall length
7.1"
Weight
43.5 oz
Finish
Coyote Tan
MSRP
$1,299.99
CA
—
MA
—
Status
Current
P320-XFIVE LEGION
3x 17rd magazines
See prices
Optics
Optic-ready
Model / part #
320X5-9-LEGION-R2
Caliber
9mm Luger
Capacity
17
Barrel
5"
Overall length
7.1"
Weight
43.5 oz
Finish
LEGION Gray
MSRP
$1,019.99
CA
—
MA
—
Status
Current
P320-XFIVE LEGION
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320X5-9-LEGION-R2-10
Caliber
9mm Luger
Capacity
10
Barrel
5"
Overall length
7.1"
Weight
43.5 oz
Finish
LEGION Gray
MSRP
$1,029.99
CA
—
MA
Yes
Status
Current
P320-XFIVE LEGION CALIFORNIA
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320X5-9-LEGION-MS-CA
Caliber
9mm Luger
Capacity
10
Barrel
5"
Overall length
8.5"
Weight
43.5 oz w/ Magazine
Finish
Elite Cerakote LEGION Gray
MSRP
$959
CA
Yes
MA
—
Status
Current
P320-XFIVE SXG
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320SXG5-9-STAS
Caliber
9mm Luger
Capacity
21
Barrel
5"
Overall length
8.5"
Weight
49.8 oz w/ Magazine
Finish
Stainless Bead Blast
MSRP
$1,819.99
CA
—
MA
—
Status
Current
P320-XFIVE SXG
3x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320SXG5-9-STAS-10
Caliber
9mm Luger
Capacity
10
Barrel
5"
Overall length
8.5"
Weight
49.8 oz w/ Magazine
Finish
Stainless Bead Blast
MSRP
$1,819.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 17rd magazines
See prices
Optics
SIG-LOCROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed
Model / part #
320XF-9-BXR3-RXSL
Caliber
9mm Luger
Capacity
17
Barrel
4.7"
Overall length
8"
Weight
30 oz
Finish
Nitron
MSRP
$1,299.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 17rd magazines
See prices
Optics
Factory dotROMEO-X PRO w/ XRAY3 Day/Night Sights installed
Model / part #
320XF-9-BXR3-RXX
Caliber
9mm Luger
Capacity
17
Barrel
4.7"
Overall length
8.2"
Weight
28.7 oz w/ Magazine
Finish
Nitron
MSRP
$1,049.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-BXR3-RXX-10
Caliber
9mm Luger
Capacity
10
Barrel
4.7"
Overall length
8.2"
Weight
28.7 oz w/ Magazine
Finish
Nitron
MSRP
$1,049.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 17rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-BXR3P-R2
Caliber
9mm Luger
Capacity
17
Barrel
4.7"
Overall length
8.2"
Weight
29.6 oz
Finish
Nitron
MSRP
$699.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-BXR3P-R2-10
Caliber
9mm Luger
Capacity
10
Barrel
4.7"
Overall length
8.2"
Weight
29.6 oz
Finish
Nitron
MSRP
$699.99
CA
—
MA
—
Status
Current
P320-XFULL
2x 17rd magazines
See prices
Optics
Factory dotROMEO-RS PRO w/ XRAY3 Day/Night Sights installed
Model / part #
320XF-9-BXR3P-RS
Caliber
9mm Luger
Capacity
17
Barrel
4.7"
Overall length
8.2"
Weight
28.7 oz w/ Magazine
Finish
Nitron
MSRP
$1,049.99
CA
—
MA
—
Status
Current
P320-XFULL CALIFORNIA
2x 10rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF-9-BXR3P-MS-CA
Caliber
9mm Luger
Capacity
10
Barrel
4.7"
Overall length
8.2"
Weight
29.6 oz w/ Magazine
Finish
Nitron
MSRP
$749.99
CA
Yes
MA
—
Status
Current
P320 Compact 9mm Pistol
2x 15rd magazines
—
Optics
No
Model / part #
320C-9-BSS-MS
Caliber
9mm Luger
Capacity
15
Barrel
3.9"
Overall length
—
Weight
26 oz
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 M.O.D. 9mm Pistol
3x 21rd magazines
—
Optics
Model / part #
320XF-9-MAXM
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
—
Weight
33.2 oz
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 M.O.D. Comp Optic Ready 9mm Pistol with Romeo-X
3x 21rd magazines
See prices
Optics
Model / part #
320XF-9-MOD-RXSL
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
—
Weight
—
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 M.O.D. Optic Ready 9mm Pistol
3x 21rd magazines
See prices
Optics
Optic-ready
Model / part #
320XF9MAXM
Caliber
9mm Luger
Capacity
21
Barrel
3.9"
Overall length
—
Weight
33.3 oz
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 M.O.D. Optic Ready 9mm Pistol
3x 10rd magazines
See prices
Optics
DPP cut
Model / part #
320XF9MAXM10
Caliber
9mm Luger
Capacity
10
Barrel
3.9"
Overall length
—
Weight
—
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 X-Carry Legion Optic Ready 9mm Pistol with Threaded Barrel
3x 10rd magazines
See prices
Optics
DPP cut
Model / part #
320XCA-9-LEGION-TB-R2-10
Caliber
9mm Luger
Capacity
10
Barrel
4.6"
Overall length
—
Weight
—
Finish
Grey
MSRP
—
CA
—
MA
—
Status
—
P320 X-Compact Optic Ready 9mm Pistol with Romeo-X
2x 10rd magazines
—
Optics
Factory dotROMEO-X installed
Model / part #
320XC-9-BXR3-RXSL-10
Caliber
9mm Luger
Capacity
10
Barrel
3.6"
Overall length
—
Weight
25.8 oz
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 X-Compact Optic Ready 9mm Pistol with Romeo-X Pro
2x 10rd magazines
See prices
Optics
Factory dotROMEO-X Pro installed
Model / part #
320XC9BXR3RXX10
Caliber
9mm Luger
Capacity
10
Barrel
3.6"
Overall length
—
Weight
—
Finish
Black
MSRP
—
CA
—
MA
—
Status
—
P320 X-Full Optic Ready 9mm Pistol with Romeo-X
2x 10rd magazines
—
Optics
Factory dotROMEO-X installed
Model / part #
320XF-9-BXR3-RXSL-10
Caliber
9mm Luger
Capacity
10
Barrel
4.7"
Overall length
—
Weight
30 oz
Finish
Black
MSRP
—
CA
—
MA
—
Status
—

What calibers does the P320 come in?

It's chambered in 45 Auto, 9mm Luger and 9mm Luger / 40 S&W / 357 SIG, depending on the version.

Is the P320 optics-ready?

Of the 51 versions, 29 are optics-ready; 3 use SIG's SIG-LOC optic mounting system; 2 use SIG's SIG-LOC optic mounting system, with a factory ROMEO-X SIG-LOC PRO with XRAY3 Day/Night Sights installed; 2 ship with a ROMEO-RS PRO w/ XRAY3 Day/Night Sights installed; 2 are milled for Leupold DeltaPoint Pro-pattern dots; 2 ship with a ROMEO-X installed; one ships with a ROMEO-X PRO w/ XRAY3 Day/Night Sights installed; one ships with a ROMEO-X Pro installed; and 5 aren't set up for an optic. Some of these optics details come from a retailer listing rather than from the maker.

How much does a SIG Sauer P320 cost?

SIG Sauer's suggested retail prices run from $359.99 to $2,479.99, depending on the version. Tap “See prices” next to any version to see what retailers are asking.

Can you buy one in California or Massachusetts?

According to SIG Sauer, 2 versions are available in California, and 2 versions are available in Massachusetts. Look for “Yes” in the CA and MA columns. State rules change, so check our California and Massachusetts pages before you buy.

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All SIG Sauer news → · Ledger Notes →

SIG Sauer's official P320 page ↗Shop SIG Sauer deals →All SIG Sauer models

Specs from SIG Sauer, checked October 22, 2026 (source). SIG Sauer doesn't publish part numbers or UPCs, so those, along with the list of factory configurations, come from retailer listings. Each deals page links to its source. Spot a mistake? Let us know and we'll fix it. SIG Sauer is a trademark of its owner, listed for identification only. Firearms Almanac isn't affiliated with SIG Sauer.