Silent Dry Oil Pen. The A.R.M.S. Oil Pen is the ultimate solution for applying gun oil, anti-rust fluids, and precision lubricants to firearms, tools, and mechanical parts. Designed for accuracy and control, this oil applicator pen ensures you use the perfect amount of oil every time reducing waste, preventing mess, and extending the life of your equipment. Perfect for firearm maintenance, gunsmithing, tool care, and general metal preservation, the A.R.M.S. Oil Pen makes it easy to reach tight spaces such as slides, bolts, hinges, and small moving parts. Compact and refillable, its a must-have maintenance accessory for professionals, hobbyists, and anyone who wants to protect their metal gear from rust, wear, and corrosion. Features Precision oil applicator delivers exact drops where needed Ideal for firearms keeps slides, bolts, and moving parts smooth Multi-purpose use suitable for tools, machinery, knives, and all metal surfaces Anti-rust protection helps prevent corrosion and extend equipment life Controlled application no leaks, spills, or over-oiling Compact and portable easy to carry in toolkits, range bags, or workbenches Refillable design long-lasting and cost-effective Professional quality durable build for repeated use