Mike's Tips - Bolt Catch Roll Pin Install

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 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 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 how to adjust an AR-15's adjustable trigger, focusing on reducing pre-travel and overtravel for a crisper break. It emphasizes safety checks and the use of a trigger pull gauge. The video, presented by an expert from AT3 Tactical, explains that adjustable triggers offer customization for accuracy and performance, particularly for competition shooters and range enthusiasts, but may not be ideal for home defense or casual use due to potential safety concerns if set too light.

This expert-level guide provides a detailed, step-by-step walkthrough for reassembling the Ruger 10/22 Rifle, presented by an instructor from Ruger Firearms. It covers safety precautions, component reinstallation, and crucial function checks, emphasizing the use of specific tools like a 5/32" Allen key and a small punch. The instruction is clear and authoritative, suitable for intermediate skill levels.

This expert-level guide details the reassembly of the Ruger Harrier Rifle, presented by a Ruger firearms instructor. It covers the step-by-step process of assembling the bolt carrier group, installing it with the charging handle into the upper receiver, and joining the upper and lower receivers. Crucially, it emphasizes thorough function checks to ensure proper operation and safety after reassembly.

This video demonstrates the correct 'rock and lock' technique for inserting AK-47 pattern magazines into the CMMG Mk47 rifle. It highlights a common user error of 'mag-locking' by attempting AR-15 style straight insertion, which leads to malfunctions. The instruction emphasizes that mastering this AK manual of arms is crucial for reliable operation of the Mk47 platform.

This guide details the installation and function of the CMMG P3 (Personal Position Preset) Screw System. The P3 screw, found in the Zeroed grip's storage compartment, installs into the Fastback receiver extension. It allows users to set a predetermined stop position for adjustable stocks or braces like the RipStock and RipBrace, enhancing consistent shouldering. The guide includes specific tool requirements and adjustment methods for both the RipStock and RipBrace.

This guide details the installation and basic usage of essential AR-15 accessories, including slings, charging handles, handstops, triggers, flashlights, and optics, as presented by Mike from CMMG. It emphasizes proper fitment and function checks, while reinforcing that proper training is the most critical element for any firearm owner.

This guide details the installation of the CMMG .22LR Conversion Kit into a standard AR-15 platform. The process involves removing the existing bolt carrier group and inserting the conversion unit. The video emphasizes the cost-effectiveness of .22LR ammunition for training and introduces new shooters to the AR platform with reduced recoil. It also highlights compatibility nuances, particularly for Mk57 platforms.