Quarter Circle 10 45 AUTO Caliber Carbine

This video delves into the historical development of 9mm AR-style firearms and specifically examines carbines manufactured by Quarter Circle 10. It also includes various promotional codes and affiliate links for firearm-related accessories and gear, such as Gerber tools, armorer's manuals, and ammunition from Fort Scott Ammunition. Discount codes are provided for Centurion products, Challenge Targets, Otis Tech, G96, and Manta Products, alongside links to the Small Arms Solutions Amazon store, Patreon, and social media.

This video showcases a new lower receiver from Quarter Circle 10, designed to appeal to Sig P320 enthusiasts, highlighting their role in the Pistol Caliber Carbine (PCC) market. It also features Quarter Circle 10's new builder kits, offering essential components for firearm assembly. The description encourages viewers to find Quarter Circle 10 online and directs them to the Guns & Tactics website for more content, including links to their social media. A standard disclaimer regarding views expressed and an affiliate disclosure are also included.

This TFBTV SHOT Show Industry Day at the Range episode features James discussing Quarter Circle 10's pistol caliber carbines (PCCs). The discussion highlights their AR15-platform PCCs, available builder kits, and new compatibility with MP5 and SIG P226 magazines. The video also promotes TFBTV's monthly Patreon giveaways of firearms and Blue Alpha Gear belts to supporters.

This video features Dave Timm providing a look at the latest offerings from Quarter Circle 10 at SHOT Show 2017. As Quarter Circle 10 specializes in AR-style platforms chambered in pistol calibers, expect coverage of various pistol caliber carbines (PCCs) and related firearms, potentially including different calibers and configurations. The content will likely highlight new models, features, and any innovative developments from the manufacturer presented at the major industry trade show.

This YouTube video appears to be a full presentation on the Quarter Circle 10 YKMF-5, chambered in 9mm. While the description is brief, the title strongly suggests an in-depth look at this specific firearm model. Viewers can expect a comprehensive overview, likely covering its features, performance, and possibly comparisons to other firearms in its class. The video's focus on a particular model indicates it's aimed at firearm enthusiasts interested in specific pistol caliber carbines or modern sporting rifles.

This video features a review of the YKMF-5 firearm from Quarter Circle 10. The creators express excitement about finally getting the firearm to the range after seeing it at SHOT Show. They enjoyed their time shooting it and anticipate future offerings from Quarter Circle 10. The description also includes promotional links for QVO Tactical's Instagram, custom gun walls, hearing protection, apparel, and Patreon support.

This video critically analyzes the M14 rifle, arguing its failure stemmed from the US Ordnance Corps' insistence on the 7.62x51mm NATO cartridge over superior intermediate rounds. The speaker details how political and traditionalist influences, including the alleged sabotage of the AR-10, led to the M14's adoption despite its shortcomings in combat, particularly in Vietnam.

This video meticulously details the M16's troubled introduction in Vietnam, tracing issues from early design flaws and procurement politics to ammunition choices. It highlights how non-chrome chambers, incorrect twist rates, and the switch to ball powder exacerbated reliability problems, contrasting with the later M16A1's successful fixes like chrome lining and proper maintenance.

This video delves into the critical role of AR-15 buffers, explaining their function in managing bolt carrier bounce and ensuring reliability across various conditions. It details the evolution from early rifle buffers to specialized H, H2, and H3 carbine buffers, highlighting the use of tungsten for increased mass. The content also covers unique applications like 9mm blowback systems and provides practical advice on buffer selection for different firearm configurations.

This video debunks common myths surrounding the Beretta M9/92FS, detailing its history, military trials, and technical evolution. It addresses slide failures, attributing them to ammunition and high round counts, not design flaws. The review highlights improvements in locking blocks and magazine reliability, emphasizing the M9's enduring capability and safety features.