Sig Sauer · Rifle

Sig Sauer MCX Spear 6.8x51mm Semi-Auto

The SIG Sauer MCX Spear is the semi-automatic civilian version of the XM5 Next Generation Squad Weapon selected by the US Army in 2022 to replace the M4A1. Chambered in 6.8x51mm (NGSW Common Cartridge), it fires a hybrid brass/steel cased cartridge at higher pressures than any previous small arms cartridge adopted by the US military. The MCX Spear operates at 80,000 PSI — compared to 62,000 PSI for 5.56 NATO.

📄Manual — not on file🔧Schematic — not on file
Type
Rifle
Action
Semi-Automatic
Caliber
6.8x51mm Common Cartridge
Capacity
20
Introduced
2022
Origin
USA
Status
Active
Platform
{"6.8x51mm Common Cartridge"}

Chamberings

Specifications

Weight (unloaded)
168 oz
Overall length
35"
Barrel options
16", 13"
Era
Modern
Military use
Yes
Intended use
military, tactical, sporting

Documents

No manual on file yet.

FAQs

How much does the Sig Sauer MCX Spear 6.8x51mm Semi-Auto weigh?
The Sig Sauer MCX Spear 6.8x51mm Semi-Auto weighs 168 oz (10.5 lb) unloaded.
What caliber is the Sig Sauer MCX Spear 6.8x51mm Semi-Auto?
The Sig Sauer MCX Spear 6.8x51mm Semi-Auto is chambered in 6.8x51mm Common Cartridge.
When was the Sig Sauer MCX Spear 6.8x51mm Semi-Auto introduced?
The Sig Sauer MCX Spear 6.8x51mm Semi-Auto was introduced in 2022 in USA and is still in production.
What is the capacity of the Sig Sauer MCX Spear 6.8x51mm Semi-Auto?
The Sig Sauer MCX Spear 6.8x51mm Semi-Auto has a capacity of 20.

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