Southern Cross Small Arms TSP X Chassis for Remington 700 SA

The Southern Cross Small Arms TSP X Chassis for Remington 700 SA is a precision rifle chassis built for shooters who demand modularity, accuracy, and real-world durability. Designed and manufactured in Australia, the TSP X transforms your Remington 700 short-action into a modern tactical platform capable of excel­ling at the range, in the field, or on the bench. Whether you're dialing in long-range loads, running competition stages, or building a custom hunting rifle, this chassis gives you the adjustability and accessories mounting you need without the guesswork.

The TSP X achieves its lightweight profile—just 4.1 lbs—without compromise, machined from 6061 T-6 aluminum and finished in durable black anodizing that resists wear in harsh conditions. The heart of its accuracy comes from a free-floating barrel design that isolates the bore from external pressure, and a proprietary recoil lug clamp system that locks your action solidly in place. You'll get 1 inch of length-of-pull adjustment and 1.1 inches of cheek rest travel to dial in your natural sight picture, plus an additional zero stop and 14° of cheek rest yaw adjustment so you can customize your cheek weld without re-zeroing. The chassis accepts AICS-pattern steel magazines, giving you proven reliability and wide aftermarket support.

Built for modularity, the TSP X's forend houses five M-LOK slots at 90°, 180°, and 270° for mounting accessories exactly where you need them—lights, grips, rail sections, or rail covers. QD sling cups fit in four different positions along the stock, and an ambidextrous magazine release works naturally whether you're right- or left-handed. A rubberized grip is included, designed for control in all conditions.

Key Features

• Free-floating barrel for improved accuracy and consistency
• Lightweight 6061 T-6 aluminum construction (4.1 lbs) with hard-anodized finish
• Proprietary recoil lug clamp design for solid action lock-up
• 1 inch length-of-pull adjustment for personalized fit
• 1.1 inch cheek rest adjustment with zero stop and 14° yaw correction
• M-LOK accessory slots at multiple angles for flexible mounting
• Four QD sling cup positions for different carry methods
• Ambidextrous magazine release for either-handed operation
• Accepts AICS-pattern steel magazines
• Includes rubberized grip

Specifications

Frequently Asked Questions

Will this chassis work with my Remington 700?

The TSP X is designed specifically for Remington 700 short-action rifles. If you have a short-action Model 700, this chassis will accept your action and magazine system.

What magazines does the TSP X use?

The chassis is compatible with AICS-pattern steel magazines, a widespread standard with many aftermarket options available.

Can I adjust the cheek rest and stock fit?

Yes. You have 1 inch of length-of-pull adjustment and 1.1 inches of cheek rest vertical travel, plus 14° of cheek rest yaw (left-right angle) adjustment to dial in your sight picture and natural shooting position.

Is the barrel truly free-floating?

Yes, the TSP X features a free-floating barrel design to improve accuracy by isolating bore vibration from external pressure.