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SHOP NOWThis video examines a Sig MCX Spear chambered in .308 with a practical, duty-style loadout. The hosts discuss the rifle’s NGSW roots, optic setup, accessories, and handling.
The video opens with a lighthearted exchange before shifting to the featured rifle: a Sig MCX Spear chambered in .308. The hosts introduce Jason, a new team member, and explain that this is his personal loadout configuration. They emphasize that the MCX Spear is a modern, military-contract platform and that this particular example is fully set up with optics, a light, and furniture choices that will be detailed later. The focus is on examining how the rifle is configured rather than promoting specific products, using this .308 version as a stand-in for the military’s newer 6.8 platform.
The discussion turns to the history behind the Sig MCX Spear. The hosts explain that the rifle traces back to the U.S. Army’s Next Generation Squad Weapon (NGSW) program, which sought to replace 5.56 due to concerns about terminal ballistics, effective range, and the ability to defeat modern body armor and intermediate barriers. Sig Sauer entered the trials and ultimately secured the contract with what was initially designated the XM7, now known as the M7, chambered in 6.8 mm (.277 Fury). The video notes that the 6.8 version is not yet available on the civilian market, so this build uses the .308 variant, described as a proven cartridge capable of extended range and improved armor performance. The hosts frame the MCX Spear as an iconic platform because of its U.S. military adoption.
Attention shifts to the optic setup that defines Jason’s loadout. He selected an FDE EOTech Vudu 1-10x scope, highlighting its relatively light weight at about 21.2 ounces, slightly lighter than a comparable Vortex 1-10x. The optic is mounted in a MAC mount, chosen for its robustness and ability to withstand hard use. The hosts note that the mount is constructed from 7075-T6 aluminum, with tempered steel used for moving parts and high-grade 12.9 screws. The quick-detach system is proprietary, toolless, and has impressed various professional users, including SOCOM and federal personnel who have handled it. An internal level is integrated into the mount, which is one of the reasons Jason prefers it for this rifle.
On top of the EOTech Vudu, Jason added a MAC 3 MOA red dot. He mounted it in the 12 o’clock piggyback position rather than at a 45-degree offset. This placement allows him to cant the rifle slightly so the dot aligns with his non-dominant eye, enabling rapid transitions from the primary optic without breaking cheek weld. The hosts briefly demonstrate how the rifle is canted to pick up the dot quickly. They mention that the MAC system is modular, with adapter plates available for offset mounting if desired. The conversation reinforces that the mount and dot combination is designed for speed and durability, with the internal level and QD system contributing to a solid, repeatable setup.
The front of the rifle features a Cloud Defensive Rein 3.0 weapon light. Jason describes it as large but very powerful in terms of lumen output, and he appreciates that Cloud includes necessary mounting hardware and a tape switch in the box. He notes a minor annoyance: setting up the light and switch required three different Allen keys—one for the mount, one for attaching the light to the mount, and one for the tape switch. The hosts still regard the light as extremely durable, with one mentioning personal experience running a Cloud light close to the muzzle for roughly a thousand rounds without issues. Additional front-end accessories include a BCM vertical grip, angled slightly in an AK-style orientation for better control, and Magpul XTM handguard panels. The panels provide heat protection and aggressive texture, likened to a stippled handgun grip.
Moving toward the rear of the rifle, the hosts point out a B5 Systems SOPMOD-style stock. They comment that this stock tends to look good on many platforms and provides a comfortable, stable cheek weld. The rifle’s overall appearance mixes FDE and black components: the FDE EOTech Vudu optic contrasts with the black MAC mount, black Lancer magazine, and the B5 stock, creating a distinct, custom look. A sling is also attached, though not discussed in detail. The hosts emphasize that the combination of optic, light, grip, panels, and stock results in a cohesive, practical configuration rather than a purely aesthetic build, while still acknowledging that the color contrast gives the rifle a unique visual character.
The conversation returns to the core rifle features. The MCX Spear uses a short-stroke piston system housed entirely in the upper, allowing for a bufferless design and a folding stock. The hosts briefly show the adjustable gas settings, including a position intended for suppressed fire. They note that the rifle ships with a Sig proprietary muzzle device, which interfaces with Sig suppressors. Changing this device requires sending the rifle back to Sig if a different suppressor system is desired. The handguard is M-LOK compatible and described as robust, with a full-length top rail that extends forward without causing noticeable zero shift. Additional pins at the rear of the handguard can be twisted to increase rigidity, a feature aimed primarily at maintaining zero for laser aiming modules and other rail-mounted devices that demand consistent alignment.
The hosts highlight the MCX Spear’s ambidextrous controls. The rifle includes magazine releases on both sides, as well as ambidextrous bolt catch and bolt release mechanisms. There is a side charging handle in addition to a more traditional AR-style control. One caution is mentioned: when releasing the bolt, users should keep their support hand clear of the side charger’s path, as one of the hosts has pinched his hand before. The charging handle is non-reciprocating during firing but moves when the bolt is sent forward as part of the operating cycle. The bufferless system and folding stock are demonstrated as advantages for storage and transport, with all operating components contained in the upper receiver assembly.
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