The QA: November 2017

Palmetto State Armory announces the PSA Sabre Mixtape Black Album, a new variant of their popular AR-15 platform. This release caters to customer demand for a blacked-out version, featuring enhanced ambidextrous controls, a specific trigger, and a dedicated 300 Blackout suppressor. The video details key components and provides a launch date and time.

This video compares the 6MM ARC and 6MM MAX cartridges, highlighting their technical differences, performance, and practical applications. While the 6MM ARC has gained significant traction and military adoption, the 6MM MAX offers potential advantages in AR-15 compatibility due to its use of a standard 5.56 bolt. However, the performance differences are noted as minuscule in real-world scenarios, with availability and existing adoption favoring the 6MM ARC.

This video features a social media experiment where three gun tubers (Ian McCollum of Forgotten Weapons, Karl Casarda of In Range TV, and Administrative Results) independently rank four iconic rifles for militia use: the FN FAL, HK G3, AR-15, and AK-47. The consensus among the experts is that the AK-47 is the superior choice for arming untrained conscripts due to its simplicity, reliability, and ease of maintenance, while the FN FAL and HK G3 are deemed too powerful and complex for such a role. The AR-15 is considered good for trained soldiers but less ideal for a ragtag militia.

This video discusses the relevance and capabilities of the MK18 platform, particularly in comparison to newer options like the 11.5-inch barrel configurations. The hosts, with extensive military backgrounds, highlight the MK18's strengths in Close Quarters Battle (CQB) and urban warfare, emphasizing its robust construction, particularly the Daniel Defense RIS II rail. While acknowledging the ballistic advantages of longer barrels, they argue the MK18 remains a highly effective and durable weapon system for specific operational environments.

This guide details how to adjust the gas system on the HK MR556 A4, a civilian variant of the HK 416. The rifle features an adjustable piston-driven gas system with two primary settings (Normal/Suppressed) and an advanced 15-position fine-tuning capability. Proper adjustment is crucial for optimal performance, especially when using a suppressor, minimizing gas blowback and ensuring reliability.

This guide, drawing from the expertise of American Outlaw, details the critical process of securing firearm accessories for real-world reliability. It emphasizes using thread-locking compounds like Loctite 243 and backup methods such as paracord to prevent components from loosening due to vibration and use. The instruction highlights the importance of this practice for ensuring consistent firearm performance when it matters most.

This video showcases a novel magnetic optic mount for pistols, demonstrating its quick attachment and detachment capabilities. The speaker tests its retention by racking the slide, highlighting its potential as a firearm innovation. While initially shown on a Glock, the mount is available for other platforms like Sig Sauer and HK.

This guide covers the basic operation and features of the EOTECH OGL, a compact laser aiming device. It highlights the interface controls, including the activation button and the illuminator adjustment lever, and explains the benefit of co-aligned visible and IR lasers for simplified zeroing. The use of VCSEL technology is also noted.

This entry details the innovative Full Conceal M1 system for the Sig P320 and a prototype Folding Glock 19, both designed for enhanced concealability. The M1 system, priced at $899, integrates an 18+1 capacity with a smartphone-like footprint and active retention. The Folding Glock 19 prototype showcases a unique mechanism for rapid deployment from a compact state, utilizing a 23-round 9mm magazine. Expert insights from Chris Tran (Guns & Tactics Magazine) and Mike (Full Conceal) highlight the technical aspects and practical applications of these designs.

This guide, drawing on expert instruction from UN12 Magazine, details the critical steps for properly installing and maintaining firearm sights. It emphasizes the use of witness marks on red dot sights to ensure screw security and highlights the importance of checking iron sights for mechanical integrity to prevent zero loss. Proper installation and regular checks are vital for all sighting systems.