Description Experience precision control over your AR-15’s gas system with the Wojtek Weaponry AR-15 Low Profile Arkto Click-Adjustable Clamp-On Gas Block. Designed for shooters who demand reliability without the hassle of over-gassing, this innovative gas block tames excessive recoil, ensures consistent cycling, and extends the life of your rifle’s components. Whether you’re building a custom AR or optimizing for suppressors, the Arkto delivers tactile, repeatable adjustments that keep your firearm running smoothly across various ammunition types. Key Features 24-Position Click Adjustment: Ball-and-detent mechanism provides positive, tactile feedback for precise gas metering, resisting carbon buildup thanks to the NiPTFE-coated screw. Low-Profile Clamp-On Design: Securely attaches to your barrel with three set screws—no dimpling required—fitting seamlessly under most free-float handguards like the Aero Atlas for a clean, professional build. Easy Installation Alignment: Top witness hole allows quick centering on your barrel’s gas port, with hand-tightening recommended using the included Vibra-tite for optimal hold. Durable Construction: Crafted from 1018 steel with a Melonite nitride finish for corrosion resistance and longevity in demanding conditions. Lightweight Performance: Weighing just 1.6-1.9 oz depending on size, it maintains your rifle’s balance without adding bulk. Specifications Gas Block Diameters: Available in 0.625″, 0.750″, 0.875″, and 0.936″ to match your barrel journal. Compatibility: AR-15 and AR-10 platforms, suitable for all calibers, gas systems, and firing schedules. Dimensions (HxW): Approximately 1.35″ x 0.825″ for .625″ size; scales slightly for larger diameters. Included Accessories: Three Allen wrenches for adjustments and installation, plus a 2ml vial of Vibra-tite threadlocker. Weight: 1.6 oz (.625″), 1.7 oz (.750″), 1.9 oz (.875″ and .936″). Why Choose the Wojtek Arkto Gas Block? Over-gassing is a common frustration in AR-15 builds, leading to harsh recoil, accelerated wear on bolts and buffers, and inconsistent ejection patterns. The Arkto Click-Adjustable Gas Block solves these issues by allowing fine-tuned gas flow control, resulting in a softer shooting experience and improved reliability—especially with suppressors or mixed ammo loads. Unlike traditional two-screw systems prone to seizing, its advanced detent design ensures adjustments stay put under heavy use, while the clamp-on mount preserves barrel harmonics for better accuracy. Affordable and robust, it’s the go-to choice for tactical enthusiasts seeking professional-grade performance without the premium price tag. Elevate your AR-15 build with the Wojtek Weaponry Arkto Click-Adjustable Clamp-On Gas Block and unlock smoother, more dependable operation on every shot. Perfect for precision shooters and high-volume trainers alike, this gas block is your key to optimized firepower. Frequently Asked Questions Q: How do I install the Arkto gas block?A: Slide it onto your barrel, align the top witness hole with the gas port, apply Vibra-tite to the set screws, and tighten by hand or with the included Allen wrench—no further than snug to avoid over-stressing the barrel. Q: Does this gas block work with suppressors?A: Yes, its adjustable design excels in suppressed setups, allowing you to reduce gas volume for minimal blowback and consistent cycling. Q: Is the adjustment repeatable and reliable over time?A: Absolutely—the 24-click ball-and-detent system with NiPTFE coating prevents carbon lockup, ensuring precise, repeatable settings even after extensive use. Additional information Weight N/A Dimensions N/A Gas Block Diameter 0.625, 0.75, 0.875, 0.936 MPN 625ARKTO, 750ARKTO UPC 26258, 26259, 26260, 26261