Videos tagged with AR-15 Piston System

This video compares the operating system of an Adams Arms piston-driven AR-15 to the AK-47's direct impingement system. It highlights how the piston system, using a reciprocating rod, keeps the bolt carrier group cleaner by venting gas and fouling away from the receiver. This design is noted as being particularly beneficial for suppressor use due to reduced gas blowback.

This expert review by Military Arms Channel provides a deep dive into the Sig Sauer 516 G3, highlighting its significant upgrades over previous models and its influence from the HK 416. The analysis focuses on enhanced durability features like replaceable steel pins and radiused bolt lugs, modularity with a swappable forward assist, and a refined 4-position gas system. The review also includes practical shooting impressions and accuracy testing with various ammunition types, positioning the 516 G3 as a high-value piston-driven AR platform.

This review of the PWS MK116 Mod 2 AR-15 focuses on its longstroke gas piston system, comparing it to short-stroke systems and direct impingement. The reviewer highlights its cleaner operation, predictable recoil, and ease of tuning for suppressed use, while also noting potential cons like proprietary parts and a stiffer safety selector. The rifle is presented as a well-valued option in its price tier, offering sub-MOA accuracy potential and reliable performance across various ammunition types.

This review of the Brownells BRN-180 Gen 3 piston upper receiver highlights significant improvements over previous generations, focusing on enhanced reliability and user-friendly features. Key upgrades include a toolless adjustable gas system with distinct settings for standard, adverse, and suppressed use, a full-length steel shield in the upper receiver for protection, and an improved left-side charging handle. The review also touches on barrel enhancements for suppressor mounting and initial accuracy testing.

The Franklin Armory OSPREY is a new AR-15 piston system designed for reliable suppressed and unsuppressed operation without manual adjustments. It features a low-profile gas piston system optimized for gas pressure management and operates without piston springs, reducing parts count. The system is available in traditional semi-automatic and Franklin Armory's patented binary firing configurations.

This video provides a first look at the Bear Creek Arsenal (BCA) GPx Piston Upper, potentially the most affordable piston AR upper on the market. The review highlights its similarities to Superlative Arms components, particularly the BCG and adjustable gas block. Initial shooting impressions indicate it functions well, though adjustment requires removing the handguard, and light primer strikes were observed with certain steel-cased ammunition.