Geissele Automatics B-Gc Competition Single Stage Trigger For Ar-15

The Geissele Automatics B-GC Competition Single Stage Trigger for AR-15 is purpose-built for shooters who need fast, reliable trigger performance without the premium price tag. Geissele partnered with Brownells to engineer a competition-grade trigger that delivers the crisp, predictable break the brand is known for—stripped of unnecessary cosmetic features that don't affect function. Whether you're running 3-Gun matches, tactical competitions, or high-volume range sessions, this single-stage trigger is designed for shooters who prioritize speed and repeatability over precision benchrest work.

What makes the B-GC stand out is flexibility: two included springs let you dial in your preferred pull weight—either 3.2 lbs. or 4 lbs.—so you can tune the trigger to your technique and discipline. The short, quick reset minimizes the time between shots without sacrificing control, making it ideal for rapid target transitions. The trigger and hammer assemblies are batch-tested rather than individually inspected, a cost-saving measure that preserves Geissele's functional performance while keeping the price accessible to competitive shooters and serious hobbyists.

Installation is straightforward: the kit includes both trigger and hammer assemblies, springs, hammer pin, grease, and clear instructions. It fits standard AR-15 and M16 receivers with .154" diameter hammer and trigger pin holes, and will also work on AR-pattern .308 rifles that accept AR-15 triggers. Black finish, proven Geissele reliability, and no compromise on the trigger break itself—just honest performance at a price that doesn't require waiting for a sale.

Key Features

• Single-stage trigger optimized for competition and rapid-fire shooting
• Two pull-weight options: 3.2 lbs. (black spring) or 4 lbs. (gold/silver springs)
• Short, quick reset for fast target transitions
• Includes complete trigger and hammer assemblies
• Black steel finish
• Batch-tested performance at a competitive price
• Universal installation on AR-15/M16 and compatible AR-platform .308 rifles

Specifications

Frequently Asked Questions

What pull weight should I choose for competition shooting?

The B-GC comes with springs for both 3.2 lbs. and 4 lbs. pull weights. The black spring delivers 3.2 lbs.; the gold and silver springs provide 4 lbs. Both are designed for competition and rapid shooting. Choose based on your personal preference and discipline—lighter pulls suit shooters who want minimal finger movement, while heavier pulls offer slightly more control. You can always swap springs to experiment.

Will this trigger fit my AR-15?

The B-GC is designed for semi-automatic AR-15 and M16 receivers with .154" diameter hammer and trigger pin holes—the standard for most AR-15 platforms. It will also work on AR-pattern .308 rifles that accept AR-15 triggers. If you're unsure about your receiver's pin diameter, verify before purchase.

Is the B-GC good for long-range or benchrest shooting?

No. Geissele specifically engineered this trigger for competition involving rapid target engagement and recreational target shooting. It is not recommended for benchrest shooting or applications requiring tight groups, as the short reset and trigger design prioritize speed over the precision control needed for distance marksmanship.

What comes in the kit?

The kit includes both trigger and hammer assemblies, multiple springs (black for 3.2 lb. pull, gold and silver for 4 lb. pull), a hammer pin, a tube of grease, and detailed installation instructions. You'll have everything needed to install it yourself.