The Belt Fed They Don't Want You to See... The Lima Six

This guide details the process of lapping an AR-15 receiver to ensure proper barrel alignment for improved long-range accuracy. Instructor Stephen Caleb from Brownells explains that receiver faces can be slightly out of alignment, leading to barrel runout. The process involves using a specialized lapping fixture and aluminum oxide lapping compound with a drill to create a perfectly flat receiver face. This ensures the barrel seats flush and square, critical for precision shooting beyond 500 yards.

This YouTube video, titled 'Bore Buddy – Não é FRT Totalmente Automático', appears to focus on a firearm accessory or modification called 'Bore Buddy'. The title explicitly states it is *not* a fully automatic FRT (Forced Reset Trigger), suggesting the content will clarify the functionality and potentially limitations or comparisons of this device. Given the focus on a specific firearm component and the clarification regarding its automatic capability, the video likely aims to inform viewers about its use, installation, or performance, potentially differentiating it from fully automatic triggers.

This guide details how to reload budget-friendly 223 Remington ammunition using Berry's 55 and 62 grain bullets and Accurate 2520 powder. It covers component selection, progressive press setup, load data considerations, field testing with a chronograph, and cost analysis, highlighting significant savings by reusing brass. The presenter, Serena, brings over 10 years of competitive service rifle experience and extensive behind-the-scenes work at Ultimate Reloader.

This guide details the process of building a retro AR-15 clone inspired by early 2000s SWAT firearms, focusing on the 'SWAT gun' build. Key elements include sourcing a police trade-in Colt AR-15, integrating a Surefire handguard with a built-in light, and mounting a 1.5x ACOG optic. The emphasis is on aesthetic authenticity and the 'cool factor' of early tactical accessories.

This guide explains the critical role of the AR-15 buffer system in rifle function, covering its components, history, and tuning capabilities. It details how buffer weight and advanced upgrades like hydraulic or captured spring systems can optimize performance, mitigate malfunctions like bolt bounce, and reduce felt recoil. Instruction is provided by an expert with high technical knowledge of AR-15 mechanics.

This guide outlines how to build an RPK-inspired rifle on an AR-15 platform. Key modifications include a 24-inch barrel for accuracy, a large muzzle brake for rapid follow-up shots, a bipod for stability, and a fixed stock for consistency. A side-charging upper is also suggested for easier reloading.

Micah Mayfield tests the compatibility and performance of Forced Reset Triggers (FRTs) across various AR-15 platforms and other firearm types. The guide details the testing of multiple firearms, including the Q Boombox, Daniel Defense PCC, LaRue AR-15, PSA Jakl, Sig Rattler LT, DPMS Kitty Kat, LMT MARS-H, and the Genesis Arms Gen 12 shotgun, highlighting successful integrations and notable failures. The video also touches upon the legal aspects and ATF rulings concerning FRTs.

Micah Mayfield, an experienced firearms influencer, provides an in-depth review of the Nemo Arms Omen Nitemare, a short-barreled .300 Win Mag rifle. He highlights its 'dumbest yet coolest' design, discusses its extreme muzzle blast and concussion from an 8-inch barrel, and demonstrates its performance during Bill drills. The review also covers reliability issues encountered after extended firing, specifically stovepipe malfunctions, and offers a method for clearing them. The video concludes with ballistic testing against a Level 3A helmet, showcasing the round's penetration power.

Micah Mayfield provides an expert review of the Holosun DRS-TH and DRS-NV hybrid optics. He highlights the DRS-TH's revolutionary entry-level thermal technology at approximately $1,600, contrasting it with high-end units costing thousands more. While acknowledging the 256x192 sensor resolution's limitations in target identification at extreme distances, Mayfield praises its effectiveness for practical hunting scenarios under 100 yards and its user-friendly interface. The DRS-NV is noted as a good value at $999.

This video provides an in-depth review of the Palmetto State Armory JAKL, highlighting its performance, potential modifications, and value proposition. Micah Mayfield, a respected firearms reviewer, details his personal build, including accuracy testing with various ammunition types and critiques of specific components. The JAKL is positioned as a compelling piston-driven alternative to the traditional AR-15 platform.