SIG SAUER MCX-SPEAR Rifle – 7.62x51mm NATO, 16″ Barrel, Collapsible/Folding Stock, Coyote Finish, 20-Round
The SIG SAUER MCX-SPEAR RSPEAR76216B is a premium semi-automatic rifle chambered in 7.62x51mm NATO, designed as a modern modular battle rifle platform derived from SIG SAUER’s proven MCX family. Built for durability, adaptability, and enhanced performance, the MCX-SPEAR combines a short-stroke gas piston operating system, ambidextrous controls, and a precision-focused design optimized for demanding applications.
Featuring a 16-inch barrel, the MCX-SPEAR delivers the power and range advantages of the 7.62x51mm NATO cartridge in a compact and maneuverable rifle configuration. The rifle includes a collapsible/folding stock, reinforced free-floating M-LOK handguard, full-length optics rail, and modular components designed for customization and mission flexibility.
The MCX-SPEAR platform incorporates a fully adjustable gas piston system, rotating bolt design, non-reciprocating side charging handle, and a SIG SAUER two-stage Match-Duo trigger. Finished in Coyote FDE, this configuration includes a 20-round magazine and provides a modern large-caliber rifle platform with advanced ergonomics and modular capability.
Specifications
| Feature | Specification |
|---|---|
| Manufacturer | SIG SAUER |
| Model | MCX-SPEAR |
| Model Number | RSPEAR76216B |
| Caliber | 7.62x51mm NATO |
| Action | Semi-Automatic |
| Operating System | Short-Stroke Gas Piston |
| Bolt Type | Rotating Bolt |
| Barrel Length | 16 inches |
| Barrel Type | Precision Barrel |
| Finish | Coyote FDE |
| Receiver Material | Aluminum |
| Handguard | Free-Floating Reinforced M-LOK |
| Stock | Collapsible/Folding Stock |
| Magazine Capacity | 20 Rounds |
| Magazine Type | SR-25 Pattern Magazine |
| Trigger | SIG SAUER 2-Stage Match-Duo Trigger |
| Safety | Ambidextrous Safety Selector |
| Controls | Fully Ambidextrous |
| Charging Handle | Non-Reciprocating Side Charging Handle + Standard Charging Handle |
| Optics Mount | Full-Length Picatinny Rail |
| Muzzle Device | SIG Suppressor-Ready QD Muzzle Device |
| Barrel Length | 16 inches |
| Weight | Approx. 8+ lbs |
Key Features
- Chambered in 7.62x51mm NATO
- Full-length 16-inch barrel
- Advanced MCX-SPEAR modular platform
- Short-stroke adjustable gas piston system
- Folding and collapsible stock
- Reinforced free-floating M-LOK handguard
- Fully ambidextrous controls
- Non-reciprocating side charging handle
- SIG SAUER 2-stage Match-Duo trigger
- Suppressor-optimized design
- Coyote FDE finish
- 20-round magazine capacity
The SIG SAUER MCX-SPEAR 7.62x51mm NATO Rifle represents the next generation of SIG’s modular rifle technology, combining battle-rifle power with modern ergonomics and adaptability. Its piston-driven action, folding stock system, and 7.62 NATO chambering make it a versatile platform for users seeking a powerful and highly configurable rifle.



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