https://stream.echo6.co/videos/watch/13cea5e3-9593-4484-91fb-af06cfa5ff11 Watch latest videos, sometimes even early releases! Sign up for the newsletter 🗞️ https://tinyurl.com/9HoleReviews or https://tinyurl.com/SlateBlack The topic "Direct Impingement" (really it's internal piston) versus External Piston AR15 still frequently comes up, but this is a topic that U.S. Army's SFOD-D (Delta) has already tackled ages ago. Henry and Josh take the peak 90's Delta Carbine (the "Gordon") out against the HK416 to see what progress has come up with over the last few decades. Side note: the "Gordon" carbine you see here is now the "true Gordon", which is no longer a 12.5in barrel adapted with an AEM5 to mimic the 90's suppressed Delta M16A2 carbine. This has the 14.5in barrel with an @allenengineering M4 suppressor sleeved over now. Video brought to you by @midwayusa https://utreon.com/c/9HoleReviews/ http://www.patreon.com/9HoleReviews https://rumble.com/c/9HoleReviews You an also access the Practical Accuracy Scoreboard here 👉 https://www.9holereviews.com/practical-accuracy Consider supporting us via Patreon! Consider visiting our supporter @SlateBlackIndustries 👉 Discount Code "9HOLE" Shopping on Amazon? Do you like sweet [yet tasteful] gun morale patches? Shopping with this link costs you nothing, but helps support our channel 👉 https://amzn.to/3trn9ju Music by Tyops (THANKS!!!) We love mail: 9 Hole Reviews 21175 Tomball Pkwy. No. 480 Houston, Texas 77070 Wed, 15 Apr 2026 11:35:01 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/13cea5e3-9593-4484-91fb-af06cfa5ff11 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.