Mitsubishi Mailbag: Customer question on gas block “upgrade". https://greyhive.com/videos/watch/1df3f82a-9bc5-480c-948a-7b27fd50c420 Mitsubishi Mailbag: Customer question on gasblock “upgrade”. Why we use 4140CM on 4150CMV barrels. Be careful making modifications to well made rifles... Especially if the manufacturer can explain the deliberate reasoning behind a specification. Mon, 25 May 2026 00:43:35 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://greyhive.com Mitsubishi Mailbag: Customer question on gas block “upgrade". https://greyhive.com/lazy-static/avatars/6094f644-7703-4c4f-a34f-a1e437f27e03.webp https://greyhive.com/videos/watch/1df3f82a-9bc5-480c-948a-7b27fd50c420 All rights reserved, unless otherwise specified in the terms specified at https://greyhive.com/about and potential licenses granted by each content's rightholder.