SIG Sauer Pistols
SIG Sauer MCX Pistol
Specs, variants & prices
SIG Sauer currently makes 6 versions of the MCX Pistol pistol, chambered in 300BLK and 5.56 NATO. Barrels run from 6.75" to 11.5". SIG Sauer's suggested retail prices run from $2,499.99 to $3,799.99, and stores set their own prices from there. The table below lines up every version so you can compare them at a glance.
What versions of the SIG Sauer MCX Pistol are there?
6 current versions. Specs and measurements are SIG Sauer's own.
MCX-LTAW PISTOL
1x 30rd magazines
—- Model / part #
- PMCX-300B-6B-LTAW
- Caliber
- 300BLK
- Capacity
- 30
- Barrel
- 6.75"
- Overall length
- 30.13"
- Weight
- 7 lbs
- Finish
- Black Anodized
- MSRP
- $2,700
MCX-LTAW SBR
1x 30rd magazines
—- Model / part #
- RMCX-300B-6B-LTAW-SBR
- Caliber
- 300BLK
- Capacity
- 30
- Barrel
- 6.75"
- Overall length
- 31"
- Weight
- 7 lbs
- Finish
- Black Anodized
- MSRP
- $2,699.99
MCX-LTAW SUPPRESSOR SBR COMBO
1x 30rd magazines
—- Model / part #
- RMCX-300B-6B-LTAW-SBR-SQX
- Caliber
- 300BLK
- Capacity
- 30
- Barrel
- 6.75"
- Overall length
- 32"
- Weight
- 7 lbs
- Finish
- Black Anodized
- MSRP
- $3,799.99
MCX-RATTLER LT
1x 30rd magazines
- Model / part #
- PMCX-300B-6B-LT-PCB
- Caliber
- 300BLK
- Capacity
- 30
- Barrel
- 6.75"
- Overall length
- 25.4"
- Weight
- 5.1 lb
- Finish
- Black Anodized
- MSRP
- $2,699.99
MCX-RATTLER LT
1x 30rd magazines
- Model / part #
- PMCX-556N-7B-LT-PCB
- Caliber
- 5.56 NATO
- Capacity
- 30
- Barrel
- 7.75"
- Overall length
- 27.4"
- Weight
- 5.5 lb
- Finish
- Black Anodized
- MSRP
- $2,699.99
MCX-SPEAR LT IR 5.56 11.5" PISTOL
1x 30rd magazines
- Model / part #
- PMCX-556N-11B-IR
- Caliber
- 5.56 NATO
- Capacity
- 30
- Barrel
- 11.5"
- Overall length
- 29.8"
- Weight
- 6.68 lb w/ Magazine
- Finish
- Gen II NiR FDE Cerakote
- MSRP
- $2,499.99
What calibers does the MCX Pistol come in?
It's chambered in 300BLK and 5.56 NATO, depending on the version.
How much does a SIG Sauer MCX Pistol cost?
SIG Sauer's suggested retail prices run from $2,499.99 to $3,799.99, 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?
California and Massachusetts each keep their own list of handguns approved for sale, and a gun has to be on it before a dealer there can sell it to you. State rules change, so check our California and Massachusetts pages before you buy.
What's the latest on the MCX Pistol?
Nothing new on the MCX Pistol lately.
Specs from SIG Sauer, checked October 22, 2026 (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.