Proster Pneumatic Rivet Gun 3924LBF — 5 Nozzles 3/32"–1/4" High-Pull Air Riveter, Lightweight Aluminum

The Proster pneumatic rivet gun is a high-power air riveter delivering 3924 lbf (1780 kgf) pull force with five interchangeable nozzles for 3/32" to 1/4" rivets, built for heavy-duty workshop and marine use.

Designed for tradespeople and serious DIYers, the Proster 3924LBF rivet gun combines aircraft‑grade aluminum construction, a 3‑claw gripping system, and a fast-return U.S.-spec air inlet to speed through aluminum, iron, and standard steel rivets. It ships with five nosepieces and an extra set of jaw pieces, plus a mandrel collection bottle to keep your workspace tidy.

How much power does this air riveter provide and what rivet sizes can it handle?

This rivet gun generates a maximum pulling force of 1780 kgf (3924 lbf) at 6–8 kgf/cm² air pressure and a 16 mm stroke. It accepts rivet diameters of 3/32" (2.4 mm), 1/8" (3.2 mm), 5/32" (4 mm), 3/16" (4.8 mm), and 1/4" (6.4 mm) via five included nozzles.

• Max pull: 3924 lbf / 1780 kgf for tough rivets
• Rivet diameters: 2.4–6.4 mm (3/32"–1/4")
• Maximum stroke: 16 mm — rivets 10–16 mm may require two pulls
• Works with aluminum, iron, and standard steel rivets (not recommended for stainless steel)

What design features improve durability and uptime?

Proster built this tool with a 3‑claw, 360° gripping design and spare jaw pieces to extend service life and reduce downtime. Aircraft‑grade aluminum keeps weight low (about 1.55 kg) while maintaining strength for frequent use.

• 3‑claw jaw system for secure mandrel capture and even force distribution
• Extra set of jaw pieces included for quick replacement on the job
• Silencer fitted to reduce exhaust noise during operation
• Ergonomic air inlet for rapid cylinder return and faster cycle times

Which applications is this rivet gun best suited for and how is cleanup handled?

The Proster riveter is aimed at automotive, marine, HVAC, metal fabrication, and general workshop projects where consistent, high‑force riveting is required. It includes a mandrel collection bottle to catch spent stems, keeping work areas cleaner and simplifying disposal.

• Ideal for auto bodywork, boat building, ductwork, gutters, trailers, and DIY metal repairs
• Mandrel bottle captures spent mandrels for easy cleanup
• Lightweight build supports extended use without excessive fatigue
• Certified recycled materials (GRS 4.0) reduce environmental impact

Who is this for? The Proster 3924LBF pneumatic rivet gun suits professional mechanics, boat builders, metal fabricators, and committed hobbyists who need reliable high‑pull performance with quick changeover between common rivet sizes. If you frequently work with aluminum, iron, or standard steel rivets and want a tool that balances power, durability, and waste‑reducing design, this riveter is built for your toolbox. Note: if your projects require stainless steel rivets, choose a tool and rivets rated specifically for that material to avoid premature wear.