Smyth Busters: Can You Mix & Match Bolt-Carrier Groups?

This guide, based on expert analysis by Ian McCollum of Forgotten Weapons, details how to identify dangerous amateur headspace adjustments on an AK-type rifle. It focuses on inspecting the bolt's locking lugs and barrel for signs of grinding and improper machining. The video strongly emphasizes the extreme danger of such modifications and advises consulting a professional gunsmith if identified.

This guide details the installation of an AR-15 buffer tube using the LAW Tactical Alignment Tool (LAT) in conjunction with a Geissele Reaction Block. Expert instruction from the School of the American Rifle demonstrates how to achieve perfect alignment of the receiver extension with the lower receiver, crucial for proper function and preventing common assembly errors. The process involves securing the components, torquing the castle nut to 38-42 foot-pounds, and ensuring a reliable build.

This guide details the installation of an aftermarket AR-15 trigger, specifically a Timney Triggers product, into a clear lower receiver. The process involves unboxing, component inspection, mounting the trigger assembly with pins, and performing a function check. The demonstrative tone and clear handling of components suggest an experienced instructor guiding the viewer through a common firearm modification.

This expert guide from the School of the American Rifle details how to identify and address rough carrier key bores in AR-15 bolt carrier groups. The instructor, demonstrating expert knowledge, explains how these manufacturing defects, particularly on Colt components, can lead to premature wear on the gas tube and reduced reliability. Solutions involve replacing the defective carrier key to ensure smooth operation and longevity of the firearm.

This guide details the installation of the RISE Armament REV 535 trigger, a modular trigger system for AR-15 platforms. The process emphasizes ease of installation with spring-loaded pins and a snap-in modular trigger face. The video demonstrates a quick, straightforward upgrade, highlighting the red anodized curved trigger face option.

This guide details the assembly of a budget-friendly AR-15 designed for maximum muzzle flash, as demonstrated by Yoki Sturrup. It covers the installation of key components like the PSA Freedom upper, KAK Industries flash can, Bushnell TRS-25 optic, and Surefire G2 light. The build emphasizes cost-effectiveness while achieving a visually impressive result for recreational shooting.

This guide details the installation of a Geissele MK8 Super Modular Rail on an AR-15 platform. It covers securing the upper receiver, installing the barrel nut, gas system, and the rail itself, emphasizing the use of specialized tools and proper torque specifications. The process requires an intermediate skill level and careful attention to detail for a secure and functional build.

This guide, based on expert instruction from Brownells, details essential practices for proper ammunition storage. It emphasizes using airtight containers, managing humidity with desiccants, and maintaining stable temperatures to ensure ammunition reliability and safety. Proper storage is crucial for preventing corrosion and propellant degradation, especially for sensitive components like primers.

This guide details the process of upgrading an AR-15 from standard A2 furniture to Magpul components. It covers the removal of the A2 pistol grip and installation of the Magpul MIAD Grip and Magpul PRS Stock. The video demonstrates efficient assembly using specialized tools, highlighting the ergonomic benefits and adjustability of the Magpul parts. Instruction is provided by Brownells, a recognized industry authority.

This entry details the creation of a movie prop suppressor for a Remington 11-87 used in 'No Country for Old Men.' Prop master Larry Zanoff explains how the suppressor was designed to look homemade and was non-functional, with sound effects added in post-production. The process highlights the creative problem-solving involved in film armory.