4UAD SmartAirsoft Lock Thread Adhesive Pen, Removable

Don't let a loose rail bolt end your game; this 4UAD thread locker keeps your hardware locked down through every round. Built specifically for high-vibration AEG and GBB platforms, it stops motor screws and rail bolts from backing out while you're on the move. It offers a solid hold during play, yet releases cleanly with a standard screwdriver when you need to open things up for maintenance.

The 4UAD applicator pen puts an end to messy spills and wasted glue. The fine-point tip lets you apply a single drop exactly where it’s needed, which is a lifesaver for tiny motor screws and optic mounts. It’s designed for a quick turnaround: you can handle parts in just 10 minutes, the formula reaches a functional hold in about 90 minutes, and it fully cures in 24 hours. Once it sets, it’s completely oil-resistant and vibration-proof.

Each pack includes one 4UAD thread locker pen, sized perfectly to toss in your range bag for field repairs or keep on your tech bench. Using this locker means you won't have to worry about a rail bolt or optic screw falling off in the dirt mid-game. It’s a simple, affordable way to keep your rifle tight and your sights zeroed, making it an essential for anyone who hates losing gear on the field.

Features:

• Precision-tip pen for controlled application

• Click-action dispenser for perfect dosing
• Prevents screw loosening and back-out
• Ideal for components requiring frequent tuning
• Removable medium-strength bond
• Compatible with standard hand tools
• Oil-resistant adhesive formula