Smyth Busters: Is Billet Better Than Forged?

This guide details the considerations for building with Brownells exclusive Mk18 Mod 1 upper receivers. It covers the choice between quad rail and M-LOK handguards, the potential for grenade launcher integration, and recommendations for enhancing shooting dynamics with A5 buffer systems. The video emphasizes the durability and performance of these uppers, even when used with full-auto lowers.

This video from Tactical Fellowship, featuring an experienced instructor, details the engineering goals and design enhancements of the BCM MK2 upper receiver. The MK2 aims to match the weight of a standard M4 upper while significantly increasing its structural rigidity, particularly around the ejection port, through strategic material redistribution and thickening.

This video showcases the impressive power and speed of the Big Kahuna Firearms Raptor 50, a single-feed bolt action rifle chambered in .50 BMG. Demonstrations include penetrating three concrete blocks, highlighting its significant damage potential compared to an AR-15. The rifle's design leverages AR-15 lower receivers for affordability and ease of assembly.

This video showcases the formidable power of the Big Kahuna Firearms Raptor 50, a .50 BMG bolt-action rifle. Demonstrations include obliterating a triple cinder block stack and creating a spectacular water explosion from jugs, highlighting the significant ballistic difference compared to an AR-15. The use of an affordable AR-15 lower receiver is noted as a key design choice for cost-effectiveness.

This video explores significant firearm upgrades achievable for under $200, focusing on performance enhancements and essential gear. Hosts Josh Brooks, CJ Washington, and Charlie Onan highlight triggers as the most impactful upgrade, followed by practical additions like .22 conversion kits for cheaper practice and reliable eye and ear protection. They also cover budget-friendly AR-15 components and essential range accessories, demonstrating how to maximize value for the modern shooter.

This expert-level overview of the BRN-180 Gen 3 upper receiver highlights key design improvements driven by user feedback. It details the non-reciprocating charging handle, enhanced steel cam path, integrated dust cover, and a three-position adjustable short-stroke piston system. The guide also covers barrel specifications and AR-15 lower compatibility, offering valuable insights for firearm enthusiasts and builders.

This video details the installation of a Geissele MK8 Super Modular Rail on an AR-15. Key steps include using a Geissele Reaction Rod for upper receiver stability, proper torquing of the proprietary barrel nut, and secure installation of the gas block and tube. The rail is then slid on and secured with two cross-bolts using a T-handle hex wrench. Final steps involve muzzle device installation and a thorough inspection.

Proper ammunition storage is crucial for maintaining reliability and safety. Avoid storing ammo in cardboard boxes in damp environments, as this leads to moisture absorption and corrosion. Utilize airtight containers like ammo cans and control humidity with desiccants like silica gel packs. Heat accelerates gunpowder and primer degradation, so store ammo at stable room temperatures. Reloading primers are particularly vulnerable to moisture and require strict airtight storage.

This video demonstrates how to upgrade an AR-15's A2 furniture to Magpul components. It details the removal of the A2 grip using a Bondhus hex set and the installation of a Magpul MIAD grip with interchangeable backstraps for improved ergonomics. The process also covers preparing and installing the Magpul PRS stock, highlighting its adjustable features for cheek weld and length of pull.

This video explores the custom Remington 11-87 shotgun used as a prop in 'No Country for Old Men.' The film required a semi-automatic shotgun with a suppressor, a combination not readily available at the time. Prop master Larry Zanoff details how a non-functional, 'homemade' looking suppressor was custom-built for the 11-87, with the iconic silenced sound effect achieved entirely in post-production.