Let's Build a DIRT CHEAP Side Charging AR Upper

This guide details the process of converting a standard AR-15 lower receiver to accept Glock magazines using the Sylvan Arms 9mm Mag Block. It covers installation, magazine compatibility, and crucial troubleshooting steps, particularly regarding trigger group compatibility which can cause significant malfunctions. The expert instructor highlights the trade-offs, including the lack of Last Round Bolt Hold Open (LRBHO) on some systems and the benefits of cheaper ammunition for training.

This guide details the installation and testing of the EndoMag 9mm conversion kit for AR-15 platforms. The video highlights how to convert standard Magpul PMAGs to accept 9mm ammunition, offering a cost-effective training solution. It also covers compatibility issues and performance variations with different upper receivers, emphasizing the importance of proper component selection for reliable function. The host, an experienced firearm builder, provides an honest assessment of the system's pros and cons for range use.

This video details the build process of a custom AR-9 pistol, highlighting the FM Products side-charging upper and CMT billet lower. The presenter, Mrgunsngear, provides insights into component selection, assembly, accuracy testing with various ammunition types, and overall performance impressions. The build emphasizes modularity and common AR-15 platform compatibility while addressing specific AR-9 considerations like bolt compatibility and magazine choices.

This video details a custom 22 WMR AR-15 build featuring a Bear Creek Arsenal side-charging upper on an Aero Precision M4E1 lower. The presenter emphasizes the critical need for a carbine-length buffer system with side-charging uppers to prevent damage to the charging handle. The build incorporates various aftermarket parts for enhanced performance and ergonomics.

This video provides a product spotlight on Foxtrot Mike (FM) lower receivers, focusing on their unique design philosophy and features. Guest Paul Noonan from FM Products explains how their lowers are designed to give customers freedom in building their ideal firearm. The video highlights compatibility between specific FM uppers and lowers, including options for AK magazine compatibility (Mike-102) and standard AR-15 style builds (Mike-15). It details features like the Picatinny Rail Adapter for easy stock installation and ergonomic, rounded edges for comfortable handling. The discussion also covers FM build kits, which provide all necessary parts except the stripped lower, and emphasizes the educational benefits of building your own firearm.

This guide details the installation of the KNS Precision AR/MCX Picatinny Stock Adapter on an AR-15 lower receiver. The process involves removing the standard buffer tube assembly and replacing it with a 1913 Picatinny rail, allowing for a wider range of stock and brace options. The installation requires careful alignment of the adapter insert and securing it with a provided screw and washer, noting the necessity of the flanged version for AR-15 compatibility.

This guide details 10 common mistakes to avoid when building an AR-15, drawing on the expertise of the Tactical Toolbox host. It emphasizes planning, selecting quality critical components like barrels and BCGs, and using the correct tools for assembly. Key takeaways include avoiding overspending on lowers, prioritizing function over aesthetics, and ensuring proper barrel installation with torque and headspace checks.

This guide provides a comprehensive approach to selecting your first handgun, emphasizing purpose, type, size, caliber, and ergonomics. It highlights the importance of testing firearms at a range before purchase and offers top recommendations for new owners. Instruction is delivered with practical, experience-driven insights.

This video provides a comprehensive guide to essential AR-15 upgrades under $100, focusing on improving reliability, ergonomics, and performance. Key recommendations include indexing the cam pin, upgrading to better bolts or extractor kits, installing drop-in triggers, and enhancing grip and stock options from brands like B5 Systems and Magpul. The host also covers foregrips, ambi controls, muzzle devices, and essential maintenance items like White Lithium Grease.

This review details the CMMG MK57 AR-15 platform chambered in 5.7x28mm, highlighting its innovative Radial Delay Blowback system. The host, Mr. GunsnGear, an experienced firearm builder, explains how this system reduces recoil and muzzle rise. Despite the technical advantages and smooth operation, the review concludes that the high cost and limited availability of 5.7x28mm ammunition make this otherwise impressive firearm a difficult purchase for most consumers.