A Blowback AR-9 That Doesn't Suck

This guide outlines the installation of various aftermarket accessories on two popular Pistol Caliber Carbines (PCCs): the CZ Scorpion Evo 3 S1 and the Grand Power Stribog SP9A3. The video, presented by an experienced hobbyist from FocusTripp, details the mounting of optics like the Primary Arms SLX MD25, suppressors such as the Rugged Obsidian 9, and performance-enhancing triggers like the Franklin Armory BFSIII Binary Trigger. It also covers the addition of ergonomic enhancements like the B&T folding stock and custom braces.

This guide details the setup of a CZ Scorpion 3+ SBR, transforming it into a versatile firearm suitable for home defense or as a truck gun. The setup incorporates several aftermarket upgrades, including a Neoteric Designs stock, Holosun optic with a Dot USA riser, Nexus bolt for enhanced reliability, a Cherry Bomb muzzle device for suppressor compatibility, an Arisaka front grip, Surefire light, and an HBI Industries trigger. The speaker, demonstrating experienced authority, highlights the importance of each component for functionality and reliability.

This guide details the modular features of the Strike Industries PCC prototype, a new 9mm pistol caliber carbine showcased at SHOT Show 2026. Key features include AR control familiarity, CZ Scorpion magazine compatibility, an internal recoil dampening system, and groundbreaking FCU modularity. The design also incorporates an HK-style charging handle and a swappable ejection port, targeting a sub-$1,000 MSRP and fostering community development through additive manufacturing.

This entry details the Matador Arms MAT-9 Hydraulic Buffer System, a dual piston hydraulic design aimed at significantly reducing felt recoil in the MAT-9 upper receiver. The system is presented as an evolution from direct blowback to smoother roller-delayed operating systems, with the buffer further enhancing this by mitigating recoil. The information is derived from a manufacturer representative at Shot Show 2026.

This video provides a brief overview and shooting demonstration of the PSA JAKL 9 SD, chambered in 9mm. The firearm features a tan/FDE finish, a short barrel, a collapsing stock, a red dot optic, and an angled foregrip. The demonstration highlights safe firearm handling and operation at an outdoor range.

This video from GUNBROS critiques the concept of a Pistol Caliber Carbine (PCC), specifically questioning the value of a 5.7x28mm variant. The speaker, demonstrating experienced authority, argues that the core purpose of a PCC is cost-effectiveness and magazine commonality, typically achieved with 9mm platforms. The video contrasts this with 5.7x28mm carbines, suggesting they offer no significant benefit over a 5.56mm AR-15 while lacking the widespread ammo and magazine availability of traditional PCCs.

This video demonstrates the full-auto capability of the Glock 18C, showcasing its extremely high rate of fire. The instructor, exhibiting high authority and expertise, highlights the factory selector switch and emphasizes proper safety gear and controlled handling. The demonstration involves loading a 17-round magazine and firing it in a very short burst, illustrating the rapid cycling of the slide and ejection of casings.

This video demonstrates a humorous training drill involving the deployment of a distraction device into a vehicle trunk, followed by a mock tactical response. The drill highlights the importance of communication and situational awareness in a dynamic environment, even in a lighthearted context. The participants showcase proper use of tactical gear and adherence to safety protocols, as demonstrated by a prominent influencer in the 3D printed firearms community.

This video demonstrates a common stovepipe malfunction with a Hi-Point JHP pistol during live fire. The speaker, a high-profile firearms influencer, humorously addresses the issue and provides immediate recognition of the problem. The content highlights potential reliability concerns with this specific firearm model under certain conditions.

This guide details the 'HK Slap' technique, a distinctive manual of arms for Heckler & Koch firearms, including 3D printed variants like the KF5. It emphasizes a firm grip, a full pull to the rear, and a decisive release to ensure the bolt goes into battery. Proper execution is crucial for reliability and is presented here with safety as the paramount concern.