The Amazing 5.7 AR: Part 2

This video from NRA Gun of the Week features an in-depth look at the Kel-Tec P50, a semi-automatic pistol chambered in the FN 5.7x28mm cartridge. The review highlights the P50's radical design, which utilizes a P90-style magazine feeding upward into the action. Key features discussed include its blowback operation, aluminum receiver, glass-filled nylon frame, extended Picatinny rail, accessory rail, threaded barrel, integrated iron sights, and sling-mounting points. The testers found the P50 to be enjoyable to shoot, particularly with its 50-round magazine, noting that the bolt does not lock open on an empty magazine. The video emphasizes the P50's innovative nature and its suitability for the fast, flat-shooting 5.7 cartridge.

This review details the AR-57 upper receiver, a conversion for the standard AR-15 platform chambered in 5.7x28mm. It highlights the unique top-mounted P90 magazine system and a clever downward ejection modification using a cut Magpul PMAG to catch spent brass. The demonstration confirms the effectiveness of this brass-catching hack.

This video from Military Arms Channel demonstrates the AR-57 platform, chambered in 5.7x28mm, while satirizing YouTube's restrictive policies on firearm content. The expert instructor navigates these limitations by using jump cuts to show the firearm's function, including its unique top-feeding and mag-well ejection system, and live fire. The commentary highlights the challenges content creators face in showcasing safe firearm usage online.

This video reviews the updated Aero Precision M4A1 Pro Ambidextrous lower receiver, highlighting its enhanced ambidextrous features. The description directs viewers to Moondog Industries for more information and provides various social media links for the Moondog Reviews channel. The video aims to educate and entertain, showcasing the product's capabilities in a safe and regulated environment, potentially on a supervised Law Enforcement shooting range. Production details, crew information, and contact for sponsorship inquiries are also included.

Elliott Delp reviews the LaRue Tactical AR-15 lower receiver, priced at $625. While expensive and lacking standard furniture, its primary value lies in the included MBT-2S two-stage trigger. When paired with a LaRue upper, this setup achieves exceptional sub-MOA accuracy, making it suitable for precision tasks like long-range shooting or varmint hunting.

This YouTube video highlights the Radian ADAC 15 as the best and preferred ambidextrous AR-15 lower receiver. The content focuses on its features and suitability for users who prefer ambidextrous controls on their rifles. The description explicitly mentions the model and its benefits, aligning with the title's focus on 'Best Ambidextrous AR Lower Receiver'.

The Daniel Defense DDM4 PDW chambered in .300 Blackout is presented as a highly effective modern defensive tool. It features a 7-inch barrel, 20-round capacity, and is shown with accessories like a Trijicon RMR and Surefire Scout light. The .300 Blackout cartridge's utility in a PDW platform is highlighted, despite common misunderstandings, with a live-fire demonstration showcasing its effectiveness.

This video compares the 5.56 cartridge to the more powerful .30-06 Springfield, highlighting the latter's historical use. It features a Remington 742 semi-automatic rifle in .30-06, questioning the classification of traditional firearms as 'assault weapons'. Live fire demonstration showcases the rifle's performance.

This review details the AR-57 upper receiver, a conversion for the standard AR-15 platform chambered in 5.7x28mm. It highlights the unique top-mounted P90 magazine system and a clever downward ejection modification using a cut Magpul PMAG to catch spent brass. The demonstration confirms the effectiveness of this brass-catching hack.

The Ruger Mini-14, chambered in .223 Remington/5.56 NATO, is examined for its 'weapon of war' status. The review highlights its modularity, demonstrated by a quick stock swap from synthetic to wood folding. Live fire shows its capabilities, contrasting its public perception with other firearms.