https://greyhive.com/videos/watch/23b87cc8-ef0f-4b7e-b801-87a2cec1cf49 Is pinning required? This is our take and how we pin gas blocks in addition to the barrel dimpling. For a fighting rifle, that will see heavy usage, it is insurance... Mon, 25 May 2026 00:32:11 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://greyhive.com https://greyhive.com/lazy-static/avatars/6094f644-7703-4c4f-a34f-a1e437f27e03.webp https://greyhive.com/videos/watch/23b87cc8-ef0f-4b7e-b801-87a2cec1cf49 All rights reserved, unless otherwise specified in the terms specified at https://greyhive.com/about and potential licenses granted by each content's rightholder.