Protect your valuable suppressor-ready firearm with the Comstock Armory Knurled Rearden/Plan-B Thread Protector, the ultimate safeguard for your muzzle threads. Designed for shooters who demand reliability and convenience, this lightweight accessory ensures your 0.9-24 Plan-B compatible threads stay pristine during storage, transport, or unsuppressed use, preventing damage from impacts, debris, and environmental exposure. Key Features Precision Knurling: Aggressive knurled surface allows for tool-free installation and removal, even with gloved hands-saving time and reducing hassle at the range or in the field. Corrosion-Resistant Construction: Crafted from high-strength 17-4 PH stainless steel with a durable black nitride finish, it withstands harsh conditions without rusting or degrading. Low-Profile Design: At just 0.4 ounces, it adds negligible weight while providing robust protection, maintaining your firearm's balance and aesthetics. Universal Plan-B Compatibility: Fits standard 0.9-24 threads on most Rearden and Plan-B muzzle devices, making it a versatile choice for modern suppressor setups. Technical Specifications Material: 17-4 PH Stainless Steel Finish: Black Nitride Thread Pitch: 0.9-24 (Plan-B Standard) Weight: 0.4 oz Dimensions: Length: 0.75 in, Width: 1 in, Height: 0.75 in Why Choose the Comstock Armory Thread Protector? In the world of tactical firearms and suppressors, exposed muzzle threads are a vulnerability waiting to happen-dents, cross-threading, and contamination can lead to costly repairs or compatibility issues. This knurled protector addresses those pain points head-on, offering peace of mind for AR-15 enthusiasts, precision shooters, and NFA owners. Its compact size won't interfere with holsters or cases, and the superior materials ensure long-term performance without compromising your setup's functionality. Elevate your gear maintenance routine with a product built by experts for serious users. Ready to shield your threads from everyday wear? Add the Comstock Armory Knurled Rearden/Plan-B Thread Protector to your arsenal today and keep your firearm in peak condition for every shot. Frequently Asked Questions Q: What is the Plan-B thread standard? A: Plan-B refers to a specialized 0.9-24 thread pitch designed for quick-detach suppressor systems, offering an alternative to traditional 1/2x28 threads for enhanced compatibility and reduced carbon lock-up. Q: Do I need a thread protector if I always use a suppressor? A: While not always essential, it's highly recommended for storage and transport to prevent accidental damage and keep threads clean, ensuring smooth attachment when you need it most. Q: Is this protector compatible with my Rearden muzzle device? A: Yes, it features standard 0.9-24 threads that match most Rearden and Plan-B compatible devices, providing a secure fit without modifications.