Videos tagged with External Piston System

This guide details the disassembly and maintenance overview of the Colt OICW Mark II LMG Prototype, focusing on its unique external piston system and quick-change barrel. It highlights key components like the pyramid-tipped gas piston and the modified bolt carrier group with 'skis' to prevent carrier tilt. The information is presented with the authority of a former Colt employee and firearms historian.

This video clarifies the distinction between AR-15 and M16 designations, explaining that M16/M4 are US government designations for AR-15 platform rifles. It details how Colt initially used 'AR-15' for its commercial line while the government adopted 'M16' for selective-fire variants. The video also touches on the M4 designation and its trademark history, emphasizing that the core internal operating system defines an AR-15, regardless of external markings or selective-fire capability.

This video provides an in-depth look at the Colt M5 Carbine, tracing its lineage from earlier Colt projects like the M5 (2003) and LE6940, highlighting the evolution of the one-piece upper receiver and its benefits. It delves into the development of the CM901 and LE901 .308 caliber rifles, their conversion capabilities, and the M5's modern features, including proprietary components and ambidextrous controls. The review covers performance, accuracy, and market positioning, offering insights from a firearms instructor's perspective.

This video provides an in-depth review of the LMT Estonia R20 RAHE reference rifle, detailing its specifications and history. The presenter, with extensive experience in firearms, highlights the rifle's unique external piston system, its development for the Estonian military contract, and its competitive advantages. Key features like the 14.3-inch barrel, ambidextrous MARS lower receiver, and specific ammunition choices are discussed, offering insights into its design and performance.

This video provides an in-depth review of the Caracal CAR814A2 Patrol Rifle, comparing it to the earlier CAR814 MO model. The presenter, a long-time Caracal enthusiast with factory experience, highlights key differences including an ambidextrous safety, a unique latch-less charging handle, and a 12-inch M-LOK handguard on the Patrol model. The review emphasizes the rifle's robust construction, excellent fit and finish, and smooth recoil impulse, positioning it as a step above standard AR-15s.

This review of the Patriot Ordnance Factory (POF) P415 Edge rifle highlights its proprietary design elements and the innovative E-Squared extraction system. The presenter details the rifle's evolution through generations, focusing on the Gen 4 model's features like the integrated trigger guard, ambidextrous controls, and the unique barrel treatment promising extended life. The E-Squared system, which uses gas impingement on the cartridge shoulder for extraction, is presented as a significant enhancement to reliability, reducing the workload on the extractor. The review also touches upon the rifle's sub-MOA accuracy potential and the legacy of its designer, Frank DeSomma.

This video details how to achieve reliable function in an AR-15 platform chambered in 7.62x39mm, addressing historical issues like feeding failures and light strikes. It highlights specific modifications including upgraded firing pins, heavier hammer springs, and specialized magazines. The Black Rifle Arms C.A.P.S. external piston system is showcased as a solution for adjustable gas management, crucial for diverse ammunition types and suppressed fire.

This review of the Barrett REC7 5.56mm highlights its robust construction, external piston operating system, and proprietary components. The rifle features a 16-inch cold hammer-forged barrel with a 1:7 twist rate, a two-position adjustable gas block for suppressed and unsuppressed use, and a Geissele SSA trigger. While praised for its fit and finish, the reviewer notes availability issues and a high MSRP.

This video provides an in-depth review and technical breakdown of the FN SCAR 16S rifle. It details the historical context of its development, stemming from issues with the M4 carbine within SOCOM. The presenter thoroughly covers the rifle's features, including its modular stock, ambidextrous controls, adjustable gas block, and external short-stroke piston system. Disassembly and reassembly procedures are demonstrated, highlighting the rifle's robust construction and unique design elements. The video also touches upon aftermarket support and potential upgrades.