The Simpson Strong-Tie G3 Gas-Actuated Fastening Tool is a portable, cordless solution for attaching light-duty fixtures to concrete, steel, CMU, concrete over metal deck, and cold-formed steel (CFS). Designed for maximum jobsite versatility, the G3 functions as both a magazine tool and a single-shot tool in one convenient package - no cords, no hoses, no compressor required. Powered by GFC34 gas fuel cells and a rechargeable Li-ion battery, the G3 delivers up to 8,000 shots per charge and requires cleaning only every 20,000 shots, making it one of the most productive and low-maintenance gas-actuated tools available to framing, drywall, MEP, and light-construction professionals.

Features

• Depth of Drive control switch for pin depth adjustment
• Battery charge indicator lights
• Comfortable "sure-grip" rubber handle and ladder hook
• Easy start-up procedure: Insert fuel cell, insert battery, load pins and begin use
• Easy to clear a fastener jam
• 45-pin capacity magazine
• 8,000 shots per Li-ion battery charge
• Only requires cleaning every 20,000 shots
• Easy access to the air filter and piston chamber

Two Tools in One

Magazine Mode: The G3 ships with the black magazine nosepiece attached and is ideal for repetitive fastening tasks such as attaching drywall track, furring strips, hat track, and angle track using GDP and GDPS collated pins. The 45-pin capacity magazine keeps work moving quickly without constant reloading.

Single-Shot Mode: By swapping to the included orange nosepiece, the G3 converts to a single-shot tool perfectly suited for attaching mechanical, electrical, and plumbing fixtures using preassembled pins and accessories such as washer pins, ceiling clips, tophats, and threaded studs. The preassembled pins for single-shot use feature 0.283-in. headed fasteners with 0.126-in. diameter shanks for stronger fastening performance.

Specifications

• Manufacturer Part Number (MPN): G3
• Brand: Simpson Strong-Tie
• Tool Type: Gas-Actuated Cordless Fastening Tool
• Power Source: GFC34 Gas Fuel Cell + Li-ion Battery
• Magazine Capacity: 45 pins
• Shots Per Battery Charge: 8,000
• Cleaning Interval: Every 20,000 shots
• Compatible Fastener Length: 0.5 in. to 1.5 in. (13 to 38 mm)
• Compatible Fastener Head Diameter: 0.244 in. to 0.300 in. (6 to 7.5 mm)
• Compatible Fastener Shank Diameter: 0.106 in. to 0.126 in. (2.69 to 3.20 mm)
• Single-Shot Pin Head Diameter: 0.283 in.
• Single-Shot Pin Shank Diameter: 0.126 in.
• Material: Combination
• Country of Origin: Taiwan

Frequently Asked Questions

What is the difference between magazine mode and single-shot mode on the G3?

The G3 ships with the black magazine nosepiece attached, which holds up to 45 collated pins and is ideal for repetitive fastening tasks such as attaching drywall track, furring strips, hat track, and angle track using GDP and GDPS collated pins. By swapping to the included orange nosepiece, the G3 converts to a single-shot tool suited for attaching mechanical, electrical, and plumbing fixtures using preassembled pins and accessories such as washer pins, ceiling clips, tophats, and threaded studs. The single-shot mode uses 0.283-in. headed fasteners with 0.126-in. diameter shanks for stronger fastening performance.

What surfaces is the G3 designed to fasten into?

The G3 is designed for attaching light-duty fixtures to concrete, steel, CMU, concrete over metal deck, and cold-formed steel (CFS).

What compatible fastener dimensions does the G3 accept?

The G3 is compatible with fasteners in the following dimensions: length 0.5 in. to 1.5 in. (13 to 38 mm); head diameter 0.244 in. to 0.300 in. (6 to 7.5 mm); shank diameter 0.106 in. to 0.126 in. (2.69 to 3.20 mm).

What is included with the G3 tool?

The G3 includes the tool itself with the black magazine nosepiece attached, an orange nosepiece for single-shot applications, two Li-ion batteries, a battery charger and cord, three Allen wrenches (4, 5, and 6 mm), safety glasses and ear plugs, a user manual and tool schematic, and a durable tool case.