Yankee Hill Machine | SuppressedFest 2025

The Oxygen Rico 309 is a hybrid suppressor designed for subsonic use on 9mm PCCs and 300 Blackout platforms. It is constructed from titanium, weighing 9 oz, and emphasizes quiet performance with subsonic ammunition. While 9mm supersonic rounds are permissible, other calibers like 300 Blackout, 8.6, and .338 ARC are strictly for subsonic use only. The suppressor is noted for its excellent sound reduction, particularly on 9mm.

This video showcases a variety of new rifle and carbine models expected for 2026, featuring introductions from Sako, Palmetto State Armory, LWRC, Smith & Wesson, Henry, and others. It highlights specific features, calibers, and some technical specifications, offering a glimpse into the evolving firearms market for tactical and sporting applications.

This video provides an overview and comparison of two distinct suppressors: the JK Armament GOAT 5.56 and the Osprey 9mm. The presenter, Johnny Q, details the modularity of the GOAT, its construction, and performance with 5.56 NATO rounds. He also highlights the unique off-center design of the Osprey 9mm, its alignment mechanism, and its suitability for 9mm and 300 Blackout subsonic rounds. Both suppressors are demonstrated for their sound reduction capabilities.

This guide synthesizes expert insights on the Yankee Hill Machine (YHM) R9 suppressor, highlighting its versatility and design considerations. The R9 is presented as a robust, full-auto rated 9mm suppressor with industry-standard Hub mounting, capable of handling various calibers including .300 Blackout, .308 Win, and 5.56 NATO with appropriate barrel length minimums. Its compact yet wider profile and multiple mounting options make it a valuable, adaptable choice for new suppressor owners seeking a 'do-it-all' solution.

This video provides an expert review of the PSA Gen 4 AR9, focusing on its limitations regarding accessory mounting due to the barrel length and handguard design. The instructor, demonstrating experienced authority, highlights issues with attaching M-LOK accessories and specific light/hand stop options. While critical of certain design choices, the overall assessment suggests it's a "nice little setup" with potential for improvement.

This guide focuses on building a cost-effective 9mm Pistol Caliber Carbine (PCC) using the Palmetto State Armory (PSA) Gen 4. The video highlights that the PSA Gen 4 can be configured for $500-$600, making it a superior value compared to other PCCs typically priced above $1000. It's recommended for budget-conscious buyers seeking a functional and customizable PCC, with options for mounting accessories like red dot sights and weapon lights.

This guide traces the historical evolution of the AR-15 platform, from Eugene Stoner's initial M16 designs to modern iterations like the M4A1 Block II and MK18 Mod 1. It highlights key developments in barrel length, gas systems, and modularity driven by military requirements. The information is presented with an authoritative tone, demonstrating deep expertise in the platform's history and technical specifications.

This guide details the construction of the GTFO Marker, a concealed self-defense tool disguised as a Sharpie marker, as demonstrated by Wick from Shark Coast Tactical. The process involves modifying a standard Sharpie to house a sharpened carbon fiber rod, reinforced with epoxy for structural integrity. The final step ensures the marker retains its realistic appearance. This project requires moderate DIY skills and careful attention to detail to create an effective, discreet tool.

This video provides an expert look inside the Maxim 22 suppressor, demonstrating its disassembly and reassembly. The presenter, with high authority from Shark Coast Tactical, explains the physics of gas dissipation through the monolithic baffle core. The Sig Sauer P322 pistol is also showcased, highlighting its features and availability.

This video provides a silent, ASMR-style demonstration of mounting a SureFire SOCOM suppressor and an EOTech optics suite (EXPS3 with G33 magnifier) onto a Daniel Defense MK18 rifle. It showcases fluid weapon manipulation, proper suppressor attachment, and the functionality of the tactical optics. The presenter, identified as a professional firearm handler/retailer, highlights the tactile feedback of the rifle's controls.