Product DescriptionThe Geissele Super Gas Block is a rugged, low-profile gas block engineered to fit under most free-floating handguards. Precision investment cast from 17-4 precipitation-hardening stainless steel for exceptional strength and corrosion resistance, it is built to withstand hard use over thousands of rounds. Designed for a .750" gas block journal, this model features a durable black finish (commonly listed as black nitride) and supports standard set-screw installation as well as Geisseles pinned bombproof installation method to help prevent shifting under recoil.Product Highlights Low-profile design to clear most free-float handguards and rails Investment-cast 17-4 precipitation-hardening stainless steel for strength and corrosion resistance Fits barrels with a .750 gas block journal diameter Includes installation hardware (coil pin, gas tube pin, set screws) plus alignment pin for compatible CHF barrels Supports set-screw or pinned bombproof installation optionsSpecs Brand: Geissele Automatics Product Type: Low-profile gas block Gas Block Journal Diameter: .750 Material: 17-4 precipitation-hardening stainless steel Finish/Color: Black (commonly listed as black nitride) Approx. Weight: 1.6 oz Approx. Dimensions: 0.997 L 1.043 W 1.411 H Included: Bombproof coil pin, stainless steel alignment pin, gas tube pin, (2) set screws Manufacturer Part Number: 05-807B UPC: 810081130219 Country of Manufacture: USADisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the products manufacturer.