How To Properly Align a Gas Block on AR Rifles

This guide from AT3 Tactical provides nine essential tips for building an AR-15 more efficiently and with fewer complications. Key advice includes dry-fitting components, protecting finishes during roll pin installation, using the spaghetti method for gas block alignment, and the importance of proper torque specifications. The video emphasizes smart lubrication, the use of a slave pin for trigger installation, and the necessity of a soft-faced hammer and a clean workspace to ensure a successful build.

This SmythBusters episode tackles five common myths surrounding AR-15 rifle builds. The video debunks misconceptions about using reaction rods, the state of raw aluminum after lapping, gas block alignment, clamping the barrel for muzzle device installation, and the practice of using a torque wrench for barrel nut removal. Key takeaways include alternative methods to reaction rods, the protective benefits of grease on lapped aluminum, the forgiving nature of gas port hole sizing, the acceptability of clamping for muzzle device work, and that torque wrenches are not ruined by barrel nut removal. The video aims to educate viewers and set the record straight on these building practices.

This video provides a demonstration and educational guide on how to install and use the LAW Tactical ARIC BCG (Bolt Carrier Group). It covers unboxing, comparing different models (C vs M), a close look at the component, setup procedures, proper lubrication techniques (emphasizing heavy application), cleaning the upper receiver, checking cup fitment, the installation process itself, and a break-in procedure with additional lubrication. The creator encourages viewers to visit the LAW Tactical website for more information and provides links for recommended products, Patreon support, and channel memberships.

This video provides a detailed guide on safely removing AR-15 front sight gas block taper pins. It emphasizes understanding pin directionality, using the correct tools like a Brownells bench block and Starrett punches, and employing a two-stage striking method with larger punches initially for energy transfer, followed by smaller punches to fully drive the pin out. Proper technique prevents damage to the gas block and barrel.

This video clarifies AR-15 gas block alignment, demonstrating that a small gap is often unnecessary for proper function due to the oversized gas block hole relative to the barrel port. Using a borescope, it's shown that running the gas block flush is acceptable for most modern builds, especially with clamp-on blocks or free-float handguards, without causing gas pressure loss. Builders should prioritize barrel dimples if present for set-screw alignment.

This video provides a detailed guide on installing a Midwest Industries Gen 4 AR-15 handguard. It covers unboxing, preparing the barrel and receiver with lubrication, proper torquing of the barrel nut (35-85 ft-lbs), and installing the gas system and handguard. Key steps include using the proprietary wrench and ensuring correct alignment of anti-rotation tabs.

This video demonstrates the installation of a Kynshot Hydraulic Buffer (RB5000) into an AR-15 platform. The presenter shows the disassembly process, highlighting the removal of the standard carbine buffer and recoil spring. The Kynshot buffer is then installed, and the firearm is reassembled and function-checked, emphasizing its role in reducing felt recoil and bolt bounce.

This review focuses on the Radian Raptor SD-SL, a gas-busting charging handle designed to mitigate gas blowback, especially when using suppressed fire on AR-15 platforms. The video demonstrates its installation and highlights its ambidextrous latches and ported shaft for gas redirection. It's presented as a high-quality aftermarket upgrade for improved shooting experience.

This video compares the audible difference between a standard AR-15 buffer spring and the Armaspec Stealth Recoil Spring (SRS). It highlights the 'twang' noise of traditional springs during charging handle operation and demonstrates how the SRS provides a significantly smoother and quieter experience. The installation process is shown to be simple, replacing the two-piece buffer and spring with a single, captured unit.

This video demonstrates the difference between a standard AR-15 buffer spring and an upgraded Sprinco Chrome Silicon spring. The Sprinco spring is shown to provide a smoother and quieter cycling action after installation. The comparison highlights the visual differences and the audible/tactile improvements in firearm operation.