Actually, the AR15 is not DI - Direct Impingement? Sort of.

💥Download War Thunder for FREE and get your bonus! ► Use my link — Watch latest videos, sometimes even early releases! Sign up for the newsletter 🗞️ or AKSHUALLLLY... the AR15 is technically not direct impingement... well sort of. It’s an internal piston. Sometimes called gas impingement internal piston. Cheers to pedantic arguments. Video brought to you by @midwayusa You an also access the Practical Accuracy Scoreboard here 👉 Consider supporting us via Patreon! Consider visiting our supporter @SlateBlackIndustries 👉 Discount Code “9HOLE“ Shopping on Amazon? Do you like sweet [yet tasteful] gun morale patche