Product Overview
- Short-barreled rifle (SBR) chambered in .277 Fury with an 13-inch barrel.
- Short-stroke gas piston operating system; folding stock and ambidextrous safety in Coyote Anodized.
- 20+1 round capacity; aluminum receiver construction.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The Sig Sauer MCX Spear is a short-barreled rifle chambered in .277 Fury, built on the MCX platform with a short-stroke gas piston operating system. The 13-inch barrel features a 1:7 twist rate. The aluminum receiver is finished in Coyote Anodized, and the rifle ships with a folding stock and ambidextrous safety. Capacity is 20+1 rounds.
Key Features
- Caliber: .277 Fury — intermediate rifle cartridge.
- 13-inch barrel with 1:7 twist — compact SBR barrel length on the MCX platform.
- Short-stroke gas piston operation — self-contained gas system keeps fouling away from the bolt carrier.
- Folding stock — allows the rifle to be stored or transported in a reduced footprint.
- Ambidextrous safety selector — operable from either side of the receiver.
- Aluminum receiver in Coyote Anodized finish — consistent color throughout the platform.
- 20+1 round capacity — accepts standard AR-10 pattern magazines.
FFL & Compliance
This short-barreled rifle is an NFA-regulated item and must ship to a Federal Firearms License (FFL) holder. Buyers are responsible for understanding and complying with all applicable local, state, and federal laws, including NFA transfer requirements. Magnum Ballistics does not provide legal advice or determine individual eligibility. We ship only to the FFL dealer selected during checkout.
