Videos tagged with M4 Profile

This video details a specific AR-15 rifle that introduced the speaker to firearms, highlighting its evolution and modifications. It covers the rifle's original build components, including a Double Star Corporation lower and a GG&G upper with a 16-inch chrome-lined M4 profile barrel. The discussion extends to upgrades like an ambidextrous safety for left-handed shooters, an H2 buffer for improved gas system function, and a new bolt, bringing the firearm into a more modern configuration. The speaker also contrasts this with their own first AR-15 build from PSA.

This video reviews two Rosco Bloodline barrels: a 10.5" and a 12.5". The reviewer highlights them as high-value, budget-friendly options for AR-15 builds, particularly SBRs and pistol builds. While noting they are slightly over-gassed, the reviewer confirms 100% function and exceptional accuracy from the 12.5" barrel. The 12.5" is recommended as the preferred choice due to its accuracy and user experience. The review includes detailed specifications for both barrels, such as material, caliber, twist rate, and gas system length, and mentions the affordability of the barrels, costing $205 for both.

This video details the professional manufacturing process of Daniel Defense barrels, from raw 4150 ordnance grade steel to finished components. It highlights the critical cold hammer forging technique, emphasizing the precision required, the immense forces involved (50 tons), and the maintenance of specialized forging equipment. The process includes gun-drilling, honing, mandrel insertion, and CNC machining for specific profiles like M4 and Government.