THE AR-RPK!

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.

This guide details how to address a seized AR-15 upper receiver, a common issue exacerbated by suppressor use and infrequent cleaning. The instructor, with extensive firearms experience, demonstrates a multi-stage approach starting with penetrating oils and progressing to more aggressive chemical cleaners when initial methods fail. The video emphasizes understanding dwell time and the effects of carbon buildup, offering practical solutions for a problem that can render a firearm inoperable.

This guide details how to thread the rear takedown pin detent hole on an AR-15 lower receiver using a 4x40 tap and a set screw. This modification allows for easier removal of components like the end plate and buffer tube without losing the rear takedown pin spring and detent. The process involves careful tapping with cutting oil and a specific technique of rotating and backing out the tap to create clean threads. It also covers trimming the takedown pin spring to accommodate the set screw.

This video details a troubleshooting process for an AR-15 experiencing a stuck bolt carrier group. The issue was ultimately identified as an incorrectly sized buffer tube detent that was too long, causing it to catch. The presenter demonstrates the process of identifying the problem, swapping parts, and testing functionality, emphasizing the importance of correct component fit for reliable operation.

This video provides a comprehensive, step-by-step guide to building an AR-15 from kits. It covers the assembly of both the upper and lower receivers, detailing the installation of critical components like the barrel nut, gas block, trigger, and buffer tube. The guide emphasizes the use of specialized tools and proper techniques to ensure a successful build, concluding with a range test to confirm functionality.

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 video presents a humorous skit emphasizing the critical importance of wearing eye protection at the shooting range. It visually demonstrates a handgun malfunction and uses a relatable, albeit exaggerated, scenario with a spent casing to highlight the potential dangers of inadequate eye safety. The creator, experienced in firearm handling and tactical gear, reinforces this essential safety message.

This video features a 'bulletproof' test where a tree is used as a ballistic medium to test various calibers from .22 LR up to .50 BMG. The Civilian Tactical host, demonstrating high-level firearms expertise, shows that even powerful rounds like .50 BMG can be significantly stopped by a dense tree, with none of the tested rounds achieving a complete pass-through. The test highlights the surprising terminal ballistics of different ammunition types against natural barriers.

This video from Civilian Tactical explores the concept of using a human body, simulated with ballistic gel, as a suppressor. The host fires a Derya Arms .22 rifle directly against a ballistic gel head and block, noting the shot sounded 'dead silent.' The experiment demonstrates the penetration depth of a .22 LR round through the simulated head and into the gel block.

This video demonstrates a ballistic test on a Belgian M1 steel helmet, evaluating its resistance against various calibers from birdshot to .223. The test, conducted by Civilian Tactical Host, shows that the helmet is not bulletproof against common handgun and rifle rounds like 9mm and .223. The host's energetic and demonstration-oriented style, coupled with expertise in tactical gear, provides a clear assessment of the helmet's limitations.