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The CROSS Magnum is SIG Sauer's answer to a question a lot of hunters and long-range shooters were already asking: what if the CROSS platform could handle a real magnum cartridge? The original CROSS rifles in .308 and 6.5 Creedmoor earned a strong following for their lightweight, modular design, but the shorter barrels left some velocity on the table. The Magnum version corrects that with a 24-inch medium-contour stainless steel barrel, which lets the .300 Winchester Magnum stretch its legs and deliver the velocities the cartridge was designed to produce. The receiver is a one-piece aluminum unit with a coyote anodized finish, built around a new long magnum action that can actually accommodate cartridges up to .300 PRC, giving this platform room to grow.
The barrel swap system is one of the more practical features on this rifle. You can change barrels without disturbing your scope or Picatinny rail, which is a real time-saver if you plan to run different calibers on the same platform. The full-length free-floating handguard runs M-LOK slots on all sides and a continuous ARCA rail along the bottom, so mounting a tripod or bipod at any position is straightforward. The stock folds to the right and collapses the overall length to just over 35 inches, which matters when you're stuffing a rifle into a truck cab or a mountain pack. Comb height and length of pull are both adjustable, and the forward-angle PRS-style grip with integrated right-side thumb rest safety gives you a solid, repeatable hold. The two-stage match trigger has a clean, light pull that reviewers consistently praise for its consistency and feel.
The integrated radial compensator is one of the standout details on this rifle. SIG rates it at a 45% reduction in felt recoil, and real-world testing backs that up, with range sessions producing noticeably softer impulse than you'd expect from a 300 Win Mag. The 24-inch barrel squeezes out full magnum velocities, with 180-grain loads running right around 3,000 fps at the muzzle. That kind of performance combined with a packable, folding chassis makes the Cross Magnum a genuinely useful tool for elk, moose, or any big-country application where you need reach and terminal authority. The barrel is threaded 5/8×24 with a 90-degree shoulder, so running a suppressor is an easy swap when the radial brake comes off.
Yes, and that's actually one of the key design goals SIG built into this platform. The quick-change barrel receiver lets you pull and reinstall a barrel while keeping your scope and Picatinny rail in place. It's a practical feature if you plan to run multiple calibers or want to switch between suppressed and unsuppressed barrel configurations.
Better than most people expect. SIG's integrated radial compensator is rated to reduce felt recoil by 45%, and that lines up with what reviewers report in the field. The rifle's weight also helps absorb the impulse, and most people who've put rounds through it say they didn't come off the range with a sore shoulder even after extended sessions.
The Cross Magnum runs a 6-round steel AICS-pattern magazine, and it ships with one included. AICS is a widely adopted standard, so compatible aftermarket magazines from several manufacturers should work. Just confirm the magazine is rated for the long-action .300 Win Mag cartridge length before buying.
Yes, the 24-inch barrel is threaded 5/8×24 with a 90-degree shoulder, which is the standard thread pitch for .30-caliber suppressors. You remove the included radial compensator and thread your suppressor directly onto the barrel. The full-length ARCA handguard also makes it easy to properly support a heavier suppressed setup with a bipod or tripod.
With the stock folded, the overall length drops to just over 35 inches, which is a significant reduction from the 45-inch extended length. That makes it much easier to transport in a truck or pack into backcountry without a full-size rifle case. The stock folds to the right side of the receiver and locks securely in place.
The .300 Win Mag chambering makes this a strong choice for big game at extended ranges, including elk, moose, mule deer, and similar-sized animals where you need both reach and terminal performance. The combination of full magnum velocity from the 24-inch barrel and the packable folding chassis makes it particularly well-matched to western hunting situations where you might cover a lot of ground before getting a shot.
| UPC | 798681697748 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CROSS-MAG-300WM-24B-FLC2 |
| Shipping Weight | 12.1 |
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