The British Just Adopted A New USA Made Combat Rifle

The KAC KS-1 (L403A1)—adopted by the UK under Project HUNTER—represents the latest evolution of the Stoner system, building on the SR-15/SR-16 lineage with better durability, ambi controls, and a rifle designed around modern optics and suppressors. In this video we run the KS-3 (11.5”) and compare it to the KS-1 (13.7”), explaining how the KS family moves beyond the original M16 concept and what that means for real-world performance today. Our Company and Merch! Onward Research http://onwardresearch.com/ henrythumb.com Insta: https://www.instagram.com/garand_thumb/ GarandThumb on Facebook: https://www.facebook.com/garandthumb1 00:00 – Knights Armament KS3 Intro 1:30 – KS1 Primer 5:15 – KS3 Live Fire Testing | First Shots 9:17 – Long Range Test | 350–550 Yards with an 11.5 Barrel 11:15 – KS3 Technical Breakdown | Full Rifle Analysis 14:59 – KS1 / KS3 differences 19:18 – MCQ2 Suppressor Review | Flash, Sound & Backpressure 24:15 – KS1 KS3 Barrel Technology | Aubert & Duval Steel Explained 29:11 – KS1 / KS3 Gas System Explained | Why It Shoots So Soft 31:01 – URX6 Rail System | Strength & Laser Zero Retention 32:44 – Knights E3.2 Bolt | Reliability Upgrades Explained 37:02 – Ambidextrous Controls | KS3 Lower Receiver 39:09 – Buffer System & Tuning | Why Knights Got It Right 40:57 – IR, Coatings & Military Features 42:00 – Optics Setup | Vortex AMG 1–10 & Aimpoint ACRO 42:25 – KS3 Final Verdict | Is It Worth the Price?