SIG Sauer Rifles
SIG Sauer MCX-SPEAR
Specs, variants & prices
SIG Sauer currently makes 4 versions of the MCX-SPEAR rifle, chambered in 7.62x51 and 6.8 X 51. Barrels run from 13" to 16". SIG Sauer's suggested retail prices run from $2,599.99 to $4,219.99, 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-SPEAR are there?
4 current versions. Specs and measurements are SIG Sauer's own.
MCX-SPEAR
1x 20rd magazines
- Model / part #
- RSPEAR-762-13B-SBR
- Caliber
- 7.62x51
- Capacity
- 20
- Barrel
- 13"
- Overall length
- 38.1"
- Weight
- 9.2 lb
- Finish
- Coyote Anodized
- MSRP
- $4,199.99
MCX-SPEAR
1x 20rd magazines
- Model / part #
- RSPEAR-762-16B
- Caliber
- 7.62x51
- Capacity
- 20
- Barrel
- 16"
- Overall length
- 32.6"
- Weight
- 8.9 lb
- Finish
- Coyote Anodized
- MSRP
- $4,199.99
MCX-SPEAR 6.8X51
1x 20rd magazines
- Model / part #
- RSPEAR-68-16B-NG
- Caliber
- 6.8 X 51
- Capacity
- 20
- Barrel
- 16"
- Overall length
- 38.1"
- Weight
- 9.2 lb
- Finish
- Coyote Anodized
- MSRP
- $4,219.99
MCX-SPEAR 6.8X51 SBR
1x 20rd magazines
- Model / part #
- RSPEAR-68-13B-NG-SBR
- Caliber
- 6.8 X 51
- Capacity
- 20
- Barrel
- 13"
- Overall length
- 8.0"
- Weight
- 8.9 lb w/ Magazine
- Finish
- Coyote Anodized
- MSRP
- $2,599.99
What calibers does the MCX-SPEAR come in?
It's chambered in 7.62x51 and 6.8 X 51, depending on the version.
How much does a SIG Sauer MCX-SPEAR cost?
SIG Sauer's suggested retail prices run from $2,599.99 to $4,219.99, 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 both limit which models dealers can sell, and the rules differ by type of gun. State rules change, so check our California and Massachusetts pages before you buy.
What's the latest on the MCX-SPEAR?
Nothing new on the MCX-SPEAR 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.