The video opens with the host welcoming viewers to Classic Firearms and introducing one of his favorite topics: the FN SCAR 16S, also known as the SCAR-L, with L standing for "Light." He hints at the usual channel "code word" fun for returning viewers and then shifts focus to the rifle on the table. The SCAR 16S is presented as the civilian counterpart to the military’s SCAR-L, chambered in 5.56 NATO. The host explains that in the early 2000s, U.S. Special Operations Command (SOCOM) wanted a new multi-caliber platform in 5.56 and 7.62x51 (.308) to potentially replace the M4. They were looking for something more accurate and more modular than the M4, and that requirement led to the birth of the SCAR program and the SCAR-L design that would eventually evolve into the modern SCAR 16S seen in the video.
The host describes how the SCAR-L entered SOCOM testing but never achieved full, long-term adoption. During trials, the rifle did not deliver the accuracy gains SOCOM had hoped for over the M4. One of the most controversial features was the reciprocating charging handle, which moved back and forth with the bolt during firing. On the early SCAR-L, this handle sat where many shooters naturally place their support hand. Under recoil, the handle could slam into the shooter’s thumb, causing pain and sometimes inducing malfunctions—an unacceptable trait in a fighting rifle. The host notes that this was not an accident or oversight by FN; SOCOM had specifically requested a reciprocating handle, likely influenced by the perceived ruggedness and reliability of platforms like the AK-47, where the charging handle’s position does not conflict with the support hand. In practice, however, this decision became one of the most criticized aspects of the original SCAR-L.
Beyond the charging handle, the early SCAR-L had other shortcomings. The host mentions reliability and feeding issues, particularly with certain polymer magazines whose feed lips could deform over time, leading to inconsistent performance. The original collapsible stock—often nicknamed the "UGG boot" stock—could sometimes collapse unintentionally when the rifle was shouldered or bumped, and there were reports of stocks breaking under hard use. Combined with the rifle’s relatively high cost, these issues led SOCOM to limit its purchases to a relatively small number of SCAR 16 rifles, reportedly around a thousand units, before deciding not to move forward with broad adoption. SOCOM ultimately concluded that the SCAR 16 did not offer enough improvement over the proven, less expensive M4 platform to justify replacing existing carbines.
In contrast to the SCAR 16, the SCAR 17 in 7.62x51 (.308) was well received and remained in SOCOM service. The host notes that the SCAR 17 developed a strong reputation for durability and performance, and SOCOM chose to keep that model while discontinuing the SCAR 16. FN, however, did not abandon the 5.56 platform. Instead, the company refined the design for the commercial market, resulting in the modern SCAR 16S featured in the video. The current 16S uses a non-reciprocating charging handle, allowing shooters to grip the rifle near the front without worrying about the handle striking their hand. The handle is also angled to reduce the chance of knuckles hitting mounted optics, addressing another complaint from the original design. FN also strengthened and reworked the stock so it no longer collapses inadvertently and is more robust overall.
The host then walks through the rifle from muzzle to stock. The SCAR 16S is equipped with an FN muzzle device attached to a 16-inch cold hammer forged barrel, a setup intended to provide long service life and consistent accuracy. The rifle uses a short-stroke gas piston system with an adjustable gas block. The gas regulator offers a standard setting and an additional setting for adverse conditions or when running a suppressor, giving the shooter flexibility to tune the rifle for different environments and configurations. The rifle comes with folding mechanical front and rear sights and a quad Picatinny rail handguard. The host comments that the quad rail feels somewhat bulky in the hand, so he has added a Magpul angled foregrip to improve ergonomics and control. A Cloud Defensive weapon light with a pressure pad is mounted on the rail, providing both momentary and constant-on activation options for low-light use.
Moving to the controls and operating system, the host explains that the SCAR 16S uses a 30-round FN metal magazine and features controls that will feel familiar to AR-15 shooters. The magazine release and bolt catch are ambidextrous, and the safety selector is also ambidextrous. The pistol grip is a standard A2-style grip. The upper receiver is a monolithic one-piece design with a continuous top rail, which allows flexible placement of optics and helps maintain zero across the length of the rail. Internally, the rifle uses a bufferless recoil system contained entirely in the upper receiver, similar in concept to platforms like the SIG MCX, CMMG Dissent, and earlier AR-18/AR-180 designs. This layout allows the SCAR 16S to use a side-folding stock. The stock can be folded for storage or transport, and the rifle can still be fired with the stock folded. The updated stock is adjustable for length of pull, includes an adjustable cheek riser, and is described as significantly more durable and user-friendly than the original SCAR stock.
To wrap up, the host highlights the optic setup on this particular SCAR 16S. It wears a Vortex AMG UH-1 holographic sight paired with an EOTech G43 3x magnifier in flat dark earth. He notes that the combination of a black primary optic and FDE magnifier is both visually appealing and practical. When the magnifier is flipped to the side, the rear flip-up sight becomes visible and can co-witness with the holographic sight, offering a solid backup aiming solution. The full configuration—non-reciprocating charging handle, reinforced adjustable stock, angled foregrip, weapon light, and modern optics—creates a rifle well-suited for both close-quarters work and intermediate distances. The host closes by emphasizing the SCAR’s iconic status due to its SOCOM origins and suggests that, in its current refined form, the SCAR 16S would likely be received far more favorably today than the original SCAR-L was during its early military trials.
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