https://greyhive.com/videos/watch/446362d5-d9eb-4b1d-bd6c-b10ce14bd55e Trying to get a K-Spec 9.5oz. to short stroke with a very strong recoil spring. How will it perform? This video was made for "Tom" who said his club members were having hammer follow/short stroke/disconnector slip - type issues on the line during competitions with the new KAK flat wire spring that comes with the K-Spec. I don't have the spring he does, but I do have a 17.5lb., very strong recoil spring! YouTube Compliance: This video is not sponsored and does not contain paid promotions. All magazines in use hold under 30 rounds. All firearms are semi-auto only. All products shown are lawful to own. This video is an artistic production. I wear ear plugs, or muffs, or both, in every shooting video. Disclaimer: Blowback9's videos are filmed at a private shooting club in a controlled setting under the supervision of trained professionals. Blowback9's videos are for entertainment purposes only. Do not try to recreate or mimic anything seen in Blowback9's videos. Do not act in any way based upon any of the information found in Blowback9's videos. The accuracy of the information in Blowback9's videos is not guaranteed or warranted in any way. You, and only you, are responsible for the consequences of your actions. By watching Blowback9's videos you agree that we will not be held liable for any injury to yourself, others, or property resulting from attempting anything based on what is shown or described in these videos. Tue, 10 Nov 2026 19:39:57 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://greyhive.com https://greyhive.com/lazy-static/avatars/5746210d-885d-44b2-9be0-92bf1e4d34df.webp https://greyhive.com/videos/watch/446362d5-d9eb-4b1d-bd6c-b10ce14bd55e All rights reserved, unless otherwise specified in the terms specified at https://greyhive.com/about and potential licenses granted by each content's rightholder.