The discussion centers on the FN SCAR 15P, often called the “baby SCAR.” Originally introduced around 2022 in 5.56, it came from a contract request for a compact PDW-style platform suited for PSD and close-quarters work. The focus shifts to the newer SCAR 15P chambered in .300 Blackout, described as a favorite caliber due to its versatility, especially with subsonic ammunition. The .300 Blackout version is essentially identical to the 5.56 model in form factor, but with key internal differences such as a different gas setup. Both pistols in the video are set up as close to “apples to apples” as possible, each paired with a Q Trash Panda suppressor to fairly compare performance between 5.56 and .300 Blackout in the same compact SCAR 15P platform.
The SCAR 15P is presented as a compact PDW-style firearm with familiar SCAR ergonomics. It features ambidextrous controls in most areas, with the exception of the bolt catch and bolt release, which function in a more traditional layout. The non-reciprocating charging handle remains a hallmark SCAR feature. The upper receiver provides ample rail space for optics and accessories. The pistol can be configured in multiple ways: it can be turned into a short-barreled rifle with the classic SCAR “UGG boot” stock, or fitted with the SCW stock from the original contract configuration, which includes a cheek piece and retractable design. In the video, both pistols are equipped with A3 braces to provide a solid, repeatable shoulder contact point while maintaining the compact PDW role.
The 5.56 SCAR 15P is taken to the range first. With its 7.75-inch barrel, it is described as light, compact, and easy to wield. Firing unsuppressed, the recoil impulse is characterized as minimal, with the SCAR system channeling recoil effectively to keep the gun controllable. After initial shots, a Q Trash Panda .30-caliber suppressor is attached to the 5.56 pistol without changing the gas setting. Even though the can is optimized for .30 caliber, it still provides a noticeable difference in shooting characteristics. The gun runs reliably without gas adjustment, and the shooter notes that the system continues to do everything needed with 5.56 in this short configuration, maintaining control and function while adding the benefits of suppression.
Attention then shifts to the .300 Blackout SCAR 15P, which looks nearly identical to the 5.56 version. The primary external indicator is the gas block marking that denotes the .300 Blackout configuration. The pistol is initially run on the standard gas setting with subsonic .300 Blackout ammunition, unsuppressed, to see if it will function reliably. It cycles without issue, suggesting the system can handle subsonic loads even without a suppressor. The Q Trash Panda suppressor is then installed, again without changing the gas setting. A shot is sent to a 100-yard target mainly to highlight the sound signature. The combination of .300 Blackout subs, short barrel, and suppressor delivers very quiet performance, illustrating the caliber’s intended role and the SCAR 15P’s compatibility with suppressed subsonic use.
To compare performance directly, both SCAR 15P pistols are fired back to back as quickly as possible. The goal is to evaluate muzzle rise, recoil impulse, and how easily each stays on target. Starting with the 5.56 version, the shooter runs rapid strings, then immediately switches to the .300 Blackout pistol. With subsonic .300 Blackout, the .300 gun is observed to stay flatter, with less noticeable muzzle movement, making it easier to keep sights on target. It is noted that this advantage may change with supersonic .300 Blackout loads, which carry more energy and recoil. The comparison highlights how subsonic .300 Blackout in a short, suppressed platform can feel softer and more controllable than 5.56, especially in rapid fire from a compact PDW-sized SCAR 15P.
The SCAR 15P is framed as a compact option for close-range roles, such as a truck gun or for quick response to close “bumps in the night.” The .300 Blackout version is emphasized for its quiet, subsonic capability and versatility between supers and subs, particularly from a short barrel designed to be suppressed. The 5.56 variant is acknowledged as more practical for common ammunition availability and general-purpose use, though neither configuration is portrayed as ideal for extended distances like 400–500 meters, where optic choice and ballistic limitations become more apparent. Street price is mentioned around $3,200 for the platform. FN caliber exchange kits are available, allowing a user to switch between 5.56 and .300 Blackout on the same SCAR 15P, though these kits can be costly. The platform is described as reliable and dependable, leaving the choice between 5.56 and .300 Blackout to user preference and intended role.
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