SCW Buffer Weight Guide: H1 vs H2 vs H3
SCW Buffer Weight Guide: H1 vs H2 vs H3. Choose the right Maxim Defense SCW buffer weight for your .300 Blackout, suppressed rifle, or custom build. H1, H2, H3 comparison and tuning tips. { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://greyhive.com#organization", "name": "Greyhive", "url": "https://greyhive.com", "description": "Greyhive is a censorship-resistant video platform for the firearms, 2A, hunting, and outdoor industries — where creators build, review, and monetize unfiltered content.", "logo": { "@type": "ImageObject", "url": "https://greyhive.com/static/uploads/images/ae198483-01c9-44b4-a16a-03f516ceaf66.svg", "width": 512, "height": 512 }, "sameAs": [ "https://x.com/greyhive", "https://www.instagram.com/greyhive/", "https://www.youtube.com/@Greyhive", "https://www.linkedin.com/company/greyhive/" ] }, { "@type": "WebSite", "@id": "https://greyhive.com#website", "url": "https://greyhive.com", "name": "Greyhive", "description": "Greyhive is a censorship-resistant video platform for the firearms, 2A, hunting, and outdoor industries — where creators build, review, and monetize unfiltered content.", "publisher": { "@id": "https://greyhive.com#organization" } }, { "@type": "Person", "@id": "https://greyhive.com/c/maxim_defense#person", "name": "Maxim Defense", "url": "https://greyhive.com/c/maxim_defense", "description": "Maxim Defense is a Greyhive creator producing original 2A, firearms, hunting, and outdoor content.", "image": "https://greyhive.com/lazy-static/avatars/58b57c64-c306-400b-ba94-638ae031dd37.jpg" }, { "@type": "Article", "@id": "https://greyhive.com/blog/maxim-defense-scw-buffer-weight-guide#article", "isPartOf": { "@id": "https://greyhive.com#website" }, "mainEntityOfPage": { "@id": "https://greyhive.com/blog/maxim-defense-scw-buffer-weight-guide" }, "url": "https://greyhive.com/blog/maxim-defense-scw-buffer-weight-guide", "headline": "SCW Buffer Weight Guide: H1 vs H2 vs H3", "name": "SCW Buffer Weight Guide: H1 vs H2 vs H3", "description": "Choose the right Maxim Defense SCW buffer weight for your .300 Blackout, suppressed rifle, or custom build. H1, H2, H3 comparison and tuning tips.", "articleSection": "Firearm Parts & Upgrades", "articleBody": "Picking an SCW buffer weight comes down to three pieces of information: barrel length, caliber, and whether the gun is suppressed. Maxim Defense builds the SCW series in standard H1, H2, and H3 weights, and in most builds you can tune the whole system by swapping buffer weight alone — no adjustable gas block required. In his buffer and spring walkthrough on Greyhive, Brett with Maxim Defense breaks down the most common question the company fields: which buffer and spring pair with which brace or stock. The SCW series is the short end of that lineup — 4 inches collapsed, 8 and 3/4 inches fully extended — and it runs on a proprietary bolt carrier group, which is why the buffer conversation works differently here than on a standard carbine. If you're spec'ing an 8.5-inch .300 Blackout, a suppressed SBR, or anything that falls outside the usual 5.56 carbine envelope, this is the guide to getting the weight right the first time instead of eating a return. Key Takeaways The Maxim Defense SCW system measures 4 inches collapsed and 8 and 3/4 inches fully extended. Maxim cuts roughly an inch and a quarter off the BCG and integrates the buffer weight into the back of the carrier, returning it to full carrier length. The SCW H1 buffer is a 4 oz buffer — Maxim's baseline recommendation for an 8.5-inch .300 Blackout running unsuppressed. Add a suppressor to that same .300 Blackout build and Brett recommends stepping up to …