Sig Sauer MCX Spear Rifle, .277 Fury/6.8x51mm, 16-Inch, Coyote

The Sig Sauer MCX Spear in .277 Fury/6.8x51mm (brand part no. RSPEAR6816BNG) pairs a 16-inch barrel with a fast 1-in-7 twist, delivering the next-generation intermediate cartridge in a select-fire-pattern civilian rifle. Sig Sauer finishes this rifle in Coyote, ships it with an included 20-round steel AR-10-pattern magazine, and mounts it optic-ready with an ambidextrous safety lever. The rifle measures 38.3 inches overall and ships at approximately 11.6 pounds. Among AR-platform rifles in the AR rifles category, the MCX Spear favors shooters who want Sig’s flagship hybrid-case cartridge in a proven MCX platform.

Key Specifications
Chambered in .277 Fury/6.8x51mm.
Rifled at a 1-in-7 rate of twist.
Features a 16-inch barrel.
Ships with an included 20-round steel AR-10-pattern magazine.
Includes an ambidextrous safety lever.
Ships optic-ready.
Overall length is 38.3 inches.
Ships at approximately 11.6 pounds.
Finished in Coyote.
Frequently Asked Questions
What is .277 Fury? Sig Sauer’s hybrid-case intermediate cartridge, also marketed as 6.8x51mm, built for higher pressure and better long-range performance.

What magazine ships with this rifle? An included 20-round steel AR-10-pattern magazine.

Buy the Sig Sauer MCX Spear .277 Fury
Sig’s flagship hybrid-case cartridge in a proven MCX platform is exactly what the Spear delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.

Additional Information

UPC
798681703081

Manufacturer
Sig Sauer

Manufacturer Part Number
RSPEAR-68-16B-NG

Action
Semi-Auto

Barrel Length
16″

Caliber/Gauge
.277 Fury

Capacity
20 + 1

Length
38.3”

Magazine Included
1 x 20-Round

Model
MCX

Number of Magazines
1 20 rd. Steel AR-10 Mag

Package Height
4.2

Package Width
11.4

Product Type
Rifle

Rate of Twist
1-in-7″

Safety
Ambidextrous Lever

Shipping Weight
11.6

Sights
Optic Ready