The Sexy Retro Shorty: Original AR-180 Police Carbine

This review covers the SAR-80, a simplified semi-automatic rifle based on the AR-18, originally designed by Sterling and later produced by Chartered Industries of Singapore. The video highlights its simple stamped steel construction, short-stroke gas piston system, and pleasant shooting characteristics during a range test. It also details US semi-auto rebuilds by TTE Precision Metalworks, noting compatibility with AR-15 magazines.

This video provides an in-depth review of the SAR-80, a simplified variant of the AR-18 design originating from Singapore. It highlights the rifle's economical construction, featuring stamped steel receivers, and demonstrates its semi-automatic function during a range test. The review also touches upon its internal components and manufacturing philosophy.

This review covers a rare, unfired Costa Mesa production Armalite AR-180, highlighting its history and design evolution from the AR-15. The video details its stamped metal construction, short-stroke gas piston system, and compares it to other manufacturers like Howa and Sterling. Range testing demonstrates its mild recoil and accurate factory sights, though a minor malfunction occurred with a high-capacity magazine.

This video introduces the upcoming Masterpiece Arms MPAR 556 rifle, slated for release in 2013. The description highlights that the MPAR 556 is not merely an AR-15 clone but incorporates design elements from both the AR-15 and AR-180 platforms. The video also includes a call to action to support MAC on Patreon and a plug for another unrelated video about a BCM Mk12 rifle with a silencer.

This video debunks the myth that an AR-15 round would 'blow off' an ear by conducting a practical experiment with pig ears. The results show that even high-velocity rounds like 5.56mm and .223 Remington, as well as heavier calibers like 45-70 and 8.6 Blackout, create small, clean holes through thin tissue, similar to a hole punch. The host explains this is because the tissue is too thin for the bullet to transfer enough energy for catastrophic cavitation, unlike in ballistics gel.

The Armalite AR-18 and AR-180 are explored as budget alternatives to the AR-15, featuring stamped sheet metal construction and a short-stroke gas piston system. Despite a commercial failure for Armalite, the design influenced numerous modern military rifles like the G36 and SA80. Production was licensed to Howa in Japan and Sterling in England, with variations in markings and serial numbers distinguishing manufacturers and full-auto capabilities.

This video details the unique 'French Finger Trap' issue with the MAS-36 rifle's bayonet, where two rifles can become unintentionally locked together. A 1951 French arsenal memorandum identified this problem, proposing a simple modification to the bayonet handle. Drilling a small hole allows a tool, like a firing pin, to depress the internal spring, enabling the separation of locked rifles.

The M134 Minigun is a scaled-down 7.62 NATO rotary cannon, requiring 24V DC power and consuming 1.5 kW. Its high rate of fire (3,000+ RPM) is essential for aircraft engagement windows. The complex delinker mechanism is critical for feeding ammunition, and practical hand-held use is impossible due to weight and recoil. Live fire demonstrates rapid ammunition consumption and the need for indirect aiming.

The H&K G11 is a revolutionary prototype assault rifle designed in the late 20th century, notable for its caseless ammunition and unique rotating drum bolt mechanism. Despite advanced features like a 2000 RPM burst fire rate and integrated optics, its development was ultimately halted by geopolitical shifts and cost concerns.

This video demonstrates the assembly and live-fire of the German 1936 pattern light mortar (L.Gr.W.36). It highlights the mortar's leveling mechanism for accuracy and the difficulty in visually tracking its 50mm projectiles after firing. The content showcases historical military hardware and its operational use.