--- product_id: 42776344 title: "Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO" price: "7112187₫" currency: VND in_stock: false reviews_count: 8 url: https://www.desertcart.vn/products/42776344-forster-products-300-aac-blackout-headspace-gauge-set-go-no store_origin: VN region: Vietnam --- # ±0.00015 in precision tolerance Dual GO/NO-GO gauges for exact chamber fit Hardened steel, ANSI & SAAMI certified Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO **Price:** 7112187₫ **Availability:** ❌ Out of Stock ## Summary > 🔍 Master your rifle’s chamber with precision and confidence! ## Quick Answers - **What is this?** Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - **How much does it cost?** 7112187₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/42776344-forster-products-300-aac-blackout-headspace-gauge-set-go-no) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual GO/NO-GO System:** Confidently verify your rifle’s chamber fit with both minimum and maximum dimension gauges, ensuring optimal performance. - • **Trusted by Gunsmiths:** The go-to tool for professionals to guarantee safe, tight, and accurate rifle chambering every time. - • **Safety Meets Performance:** Prevent dangerous excessive headspace and maintain peak accuracy with this essential gunsmithing gauge set. - • **Premium Hardened Steel Build:** Crafted from top-grade steel and precision ground to industry standards for durability and reliability in every use. - • **Pinpoint Precision Engineering:** Achieve ultra-accurate chamber measurements with ±0.00015 inch tolerance for flawless firearm safety. ## Overview The Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO is a precision-engineered tool designed for gunsmiths to accurately measure rifle chamber headspace. Manufactured from hardened steel and ground to exact ANSI and SAAMI tolerances (±0.00015 inch), it features dual GO and NO-GO gauges to ensure safe, tight, and reliable chamber dimensions for 300 AAC Blackout cartridges, preventing dangerous excessive headspace and optimizing firearm performance. ## Description Every gunsmith knows that proper use of a headspace gage is the most reliable way to test the length of a rifle chamber. “Headspace” is the distance between the face of the breech and the base of the cartridge when the action is closed, and excessive headspace can be dangerous as well as impair accuracy. For instance, unsupported brass fired in a rifle action with excessive headspace can rupture, allowing gas to blow rearward like rocket exhaust. Because your safety is on the line, Forster Headspace Gages are made with painstaking care and exacting manufacturing standards to ensure accurate testing of your rifle’s chamber. If a rifle closes on a GO gage, the rifle chamber will accept any ammunition that is made within SAAMI (industry standard) specifications. If a rifle closes on a NOGO gage, the rifle chamber might have excessive headspace. Most gunsmiths chamber a rifle’s headspace between the GO and NOGO dimensions. If a rifle closes on a FIELD gage, the rifle chamber is dangerously close to or already over the SAAMI specified maximum chamber size. Review: Good Tool - Good gauges works fine. no problems Review: works as described. - works as described. ## Features - 300 AAC BLACKOUT: Use to check headspace of 300 AAC Blackout - RIMLESS CARTRIDGE HEADSPACE: The proper use of Headspace Gages is the most reliable way to test rifle chamber length. Headspace in a rimless cartridge is the distance between the bolt face and a datum line, determined by SAAMI, where the front of the cartridge rests on its shoulder when the bolt is closed. - NO-GO: Corresponds to the maximum headspace we recommend for gunsmiths’ chambering new bolt-action rifles. This is not a SAAMI-maximum measurement. If a rifle closes on a NO-GO gage, it may still be within SAAMI specifications, or it may have excessive headspace. To determine if there is excessive headspace, the chamber should then be checked with a FIELD gage. The NO-GO gage is a valuable tool for gunsmiths’ reaming new chambers, in order to ensure tight and accurate headspace - GO: Corresponds to the minimum chamber dimensions. If a rifle closes on a GO gage, the chamber will accept ammunition that is made to SAAMI maximum specifications. The GO gage is essential for checking a newly-reamed chamber in order to ensure a tight, accurate, and safe chamber that will accept SAAMI maximum ammo. - PRECISION MACHINED: Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. Headspace tolerance ground to a very exacting ±.00015. Each Headspace Gage thoroughly inspected with NIST-certified measurement tools to ensure the highest quality product. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.2 out of 5 stars 53 Reviews | ## Images ![Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Image 1](https://m.media-amazon.com/images/I/41924wUc02L.jpg) ![Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Image 2](https://m.media-amazon.com/images/I/71uXYzNEoyL.jpg) ![Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Image 3](https://m.media-amazon.com/images/I/714tPRcKnWL.jpg) ![Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Image 4](https://m.media-amazon.com/images/I/81yWia6VfWL.jpg) ![Forster Products 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Image 5](https://m.media-amazon.com/images/I/614LnvZkG7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Tool *by T***R on May 4, 2025* Good gauges works fine. no problems ### ⭐⭐⭐⭐⭐ works as described. *by C***Z on March 1, 2025* works as described. ### ⭐⭐⭐⭐⭐ Worked just fine *by S***R on April 14, 2023* The gauges seem to work fine for my new rifle barrel. The action closes on the Go gauge and doesn't on the No Go gauge. That's pretty much all they are good for, and seem to be in spec. ## Frequently Bought Together - 300 AAC Blackout Headspace Gauge Set GO and NO-GO - Forster Products 5.56 NATO MIN and MAX Headspace Gage Set - AeroShell 33MS / 64 Gun Grease .5oz / Mil-Spec for Barrel Nut Thread --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/42776344-forster-products-300-aac-blackout-headspace-gauge-set-go-no](https://www.desertcart.vn/products/42776344-forster-products-300-aac-blackout-headspace-gauge-set-go-no) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-04*