The Simpson Strong-Tie G3 Gas-Actuated Fastening Tool is a portable, cordless fastening solution built for attaching light-duty fixtures to concrete, steel, CMU, concrete over metal deck, and cold-formed steel (CFS). What sets the G3 apart is its 2-in-1 design: the tool ships with a black magazine nosepiece for repetitive collated-pin work, and converts quickly to a single-shot tool by swapping in the included orange nosepiece - giving framing, drywall, and MEP professionals two dedicated fastening modes in one compact package. No cords, no hoses, and no compressor are required. Powered by GFC34 gas fuel cells, the G3 handles everything from drywall track and furring strips to washer pins, ceiling clips, tophats, and threaded studs with equal confidence.

Key Features

• 2-in-1 magazine and single-shot tool - switch between a 45-pin collated magazine for high-volume track and furring work and a single-shot mode for MEP fixtures and preassembled accessories, eliminating the need to carry two separate tools on the jobsite
• Depth of Drive control switch - allows on-the-fly pin depth adjustment so fasteners seat correctly across varying substrate conditions without stopping to swap out components
• 8,000 shots per Li-ion battery charge - delivers a full day of sustained fastening output from a single charge, keeping downtime minimal on large-scale projects
• Cleaning required only every 20,000 shots - extended maintenance intervals reduce time spent on tool upkeep and help crews stay productive across long work cycles
• 45-pin magazine capacity - fewer reloads per run means faster completion of repetitive tasks such as attaching drywall track, hat track, and angle track with GDP and GDPS collated pins
• Comfortable sure-grip rubber handle and ladder hook - reduces hand fatigue during extended use and keeps the tool secure and accessible when working at height
• Battery charge indicator lights - let the operator monitor remaining power at a glance so they can plan recharges before work is interrupted
• Easy-access air filter and piston chamber - simplifies routine maintenance so the tool can be serviced quickly in the field without specialized knowledge or tools
• Straightforward startup procedure - insert the fuel cell, insert the battery, load pins, and begin fastening, shortening setup time and reducing the learning curve for new operators
• Single-shot mode uses 0.283-in. headed fasteners with 0.126-in. diameter shanks - the larger-diameter preassembled pin shanks deliver stronger fastening performance when securing mechanical, electrical, and plumbing fixtures

Why This Product

• One tool replaces two - the G3 converts between a collated magazine tool and a single-shot tool with a simple nosepiece swap, so framing, drywall, and MEP crews can handle the full range of light-duty concrete and steel fastening applications without carrying or purchasing separate gas-actuated tools
• Truly cordless and hose-free - GFC34 gas fuel cell actuation combined with a rechargeable Li-ion battery means the G3 goes anywhere on the jobsite without being tethered to a compressor, power outlet, or air line, making it well suited for elevated work, tight spaces, and multi-floor projects
• Low maintenance, high output - with up to 8,000 shots between battery charges and a cleaning interval of every 20,000 shots, the G3 is engineered to stay in operation longer between service intervals than tools requiring more frequent upkeep, supporting consistent productivity across demanding schedules
• Complete kit, ready to work - the G3 ships with two Li-ion batteries, a battery charger, three Allen wrenches, safety glasses, ear plugs, and a durable tool case, so crews have the accessories and protection gear needed to get started without additional purchases

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

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.