From the Vault: The Howa AR-18/180

This video explores the Armalite AR-18 and its semi-automatic variant, the AR-180, developed after Armalite sold the AR-15 to Colt. It highlights the AR-18's efficient short-stroke gas piston and rotating bolt design. Despite limited commercial success, its internal systems profoundly influenced modern rifles like the SA80, Steyr AUG, HK G36, CZ Bren, and FN F2000.

This video analyzes the Brownells BRN-180, detailing its evolution from the AR-18 and AR-180 platforms, and also touches upon the Armalite AR-180B. The description lists several accessory products, including Vortex Optics, Magpul sights, and cleaning supplies, suggesting the video may cover the integration and functionality of these items with the firearm. The content appears to be an in-depth review or historical comparison focused on the AR-18/180 lineage and its modern interpretation.

This video details final hammer prices from the December 2019 Rock Island Auction, highlighting significant sales like the Powell Cartridge Counter Luger for $126,500. It covers a range of firearms from Civil War carbines and rare revolvers to modern rifles and unusual shotguns, providing specific auction results for each. The review emphasizes the market value of collectible and rare firearms, noting items that failed to sell due to high reserves.

The Armalite AR-16 is a rare prototype chambered in 7.62 NATO, bridging the gap between the AR-10 and AR-18. It features a short-stroke gas piston, dual recoil springs, and a unique 5-aperture rotating rear sight. Only two AR-16s are known to exist, making it a significant piece of Armalite's design history.

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 video from Military Arms Channel explores the Masterpiece Arms MPAR, a rifle that is a clone of the Australian Leader T2 Mk5, which itself was a clone of the original Armalite AR-18. The description provides a detailed history of the AR-18 design and its evolution through various manufacturers and countries. It also includes links to the MAC website, Patreon, Utreon, Modern Gun School, Discord, Twitch, and discount codes for Primary Arms and Challenge Targets. The video is a deep dive into the lineage and development of this particular firearm platform.

This video details the installation of a Geissele MK8 Super Modular Rail on an AR-15. Key steps include using a Geissele Reaction Rod for upper receiver stability, proper torquing of the proprietary barrel nut, and secure installation of the gas block and tube. The rail is then slid on and secured with two cross-bolts using a T-handle hex wrench. Final steps involve muzzle device installation and a thorough inspection.

Proper ammunition storage is crucial for maintaining reliability and safety. Avoid storing ammo in cardboard boxes in damp environments, as this leads to moisture absorption and corrosion. Utilize airtight containers like ammo cans and control humidity with desiccants like silica gel packs. Heat accelerates gunpowder and primer degradation, so store ammo at stable room temperatures. Reloading primers are particularly vulnerable to moisture and require strict airtight storage.

This video demonstrates how to upgrade an AR-15's A2 furniture to Magpul components. It details the removal of the A2 grip using a Bondhus hex set and the installation of a Magpul MIAD grip with interchangeable backstraps for improved ergonomics. The process also covers preparing and installing the Magpul PRS stock, highlighting its adjustable features for cheek weld and length of pull.

This video explores the custom Remington 11-87 shotgun used as a prop in 'No Country for Old Men.' The film required a semi-automatic shotgun with a suppressor, a combination not readily available at the time. Prop master Larry Zanoff details how a non-functional, 'homemade' looking suppressor was custom-built for the 11-87, with the iconic silenced sound effect achieved entirely in post-production.