Description
Sig Sauer built the Cross from the ground up in New Hampshire with input from hunters, military snipers, and long-range competitors, and this 277 Sig Fury version is where the platform really flexes. The cartridge comes straight out of the technology Sig developed for the U.S. Army's Next Generation Squad Weapon program, using a hybrid case with a steel base and brass body to run at higher pressures than conventional brass allows. The payoff is real: 150 grain loads leaving the 20 inch cold hammer forged barrel at over 3,000 fps, which means flatter trajectories, faster flight times, and less wind drift than you get from traditional short-action cartridges. It also digests 6.8×51 high-pressure ammunition, so feeding it is more flexible than you might expect.
Why the Cross 277 Fury Carries So Well
Most rifles with this kind of ballistic reach weigh a ton. The Cross runs about 7.3 pounds with the magazine thanks to its one-piece aluminum receiver, and the folding precision stock drops the overall 38.5 inch length down to something that slides into a pack or truck case without a fight. The stock adjusts for length of pull and comb height, so getting behind the glass comfortably takes seconds, not a gunsmith. An AR-style grip with a reduced angle and a fully ambidextrous safety keep the controls familiar and quick.
Set Up for Serious Glass and Accessories
The receiver wears a Picatinny top rail ready for a long-range optic, and the 15 inch free-float M-LOK handguard gives you plenty of real estate for a bipod, sling mounts, or whatever else your setup calls for. The barrel is threaded 5/8×24 with a tapered shoulder for clean suppressor or brake alignment, with a thread protector installed from the factory. Behind it all sits a two-stage match trigger that's externally adjustable, breaking clean and crisp the way a precision rifle should. Feeding comes from a detachable 5-round AICS-pattern magazine with a paddle-style release that works from either side. Whether you're stretching steel past 800 or packing into elk country, this rifle earns its spot.
Key Specifications
- UPC: 798681705191
- Manufacturer Part Number: CROSS-277-20B
- Model: Cross
- Caliber: 277 Sig Fury
- Action: Bolt Action
- Capacity: 5+1 Rounds
- Barrel Length: 20 inches
- Barrel Material: Cold Hammer Forged Steel
- Twist Rate: 1:10
- Muzzle Threads: 5/8×24 with Tapered Shoulder
- Trigger: Two-Stage Adjustable Match
- Stock: Folding Precision Adjustable
- Handguard: 15" Free-Float M-LOK
- Overall Length: 38.5 inches
- Weight: 7.3 lbs with Magazine
- Sights: Optic Ready, Picatinny Rail
What’s Included
- Sig Sauer Cross 277 Sig Fury rifle
- One 5-round AICS-style detachable magazine
- Thread protector with taper cap
Frequently Asked Questions
What ammo does the Sig Cross 277 Fury shoot?
It's chambered for 277 Sig Fury, the hybrid-case cartridge Sig developed alongside the round used in the Army's Next Generation Squad Weapon program. The steel-base, brass-body case runs at higher pressure than conventional cartridges, which is how it pushes 150 grain bullets past 3,000 fps from the 20 inch barrel. It will also run 6.8×51 high-pressure ammunition.
Is the Cross 277 Fury suppressor ready?
Yes. The 20 inch barrel is threaded 5/8×24 and features a tapered shoulder that helps keep a suppressor or muzzle brake perfectly aligned with the bore. A thread protector with a taper cap comes installed from the factory, so the muzzle stays clean until you're ready to mount something.
Does the Sig Cross come with a scope or sights?
No, it ships optic ready with no sights installed. The receiver has a Picatinny top rail, so you can mount whatever scope fits your style of shooting. Given how flat the 277 Fury shoots, a quality long-range optic is the natural pairing.
How adjustable is the stock on the Cross?
The precision stock adjusts for both length of pull and comb height, so you can dial in a proper cheek weld behind just about any scope setup. It also folds along the receiver, shortening the rifle considerably for packing into the backcountry or stowing in a shorter case. It locks up solid when deployed, so there's no wobble when you're behind the trigger.





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