Is it compatible with a Polymer80 AR-15 lower receiver?

Yes, it is compatible with Polymer80 AR-15 lower receivers that have a fully milled and finished fire control group pocket. Ensure your lower is in a complete, ready-to-assemble state like our Anodized Black 80% Lower before installation.

How long does shipping take?

Standard order processing and shipping for in-stock items like the FRT-15C3™ typically takes 3-5 business days before carrier transit. For detailed timelines on larger orders, refer to our Bulk Order Lead Times article.

Can I return it if it doesn't fit my lower?

Uninstalled, new-in-box items can be returned within 30 days of receipt, subject to a 15% restocking fee. All details on condition requirements and the process are covered in the Component Return Policy .

Does this work with a standard AR-15 safety selector?

No, it requires the proprietary 3-position selector drum and levers included in the kit. The system is engineered to function specifically with these components to achieve its three firing modes.

ArcForge Arms

FRT-15C3™

Name: FRT-15C3™
Brand: ArcForge Arms
SKU: FRT-15C3
Price: 450.00 USD
Availability: InStock
Rating: 4.3 (17 reviews)

SKUFRT-15C3 CategoryTriggers

4.3 ★★★★ Based on 17 editorial test scenarios · Reviewed by Ethan Caldwell · Updated 2026-05-28

$450.00

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Video review

Independent third-party video — not affiliated with ArcForge Arms.

Ethan Caldwell's take

Polymer frame ergonomics and grip texture · Stress‑relief machining for 80% lower receivers · Reviewed 2026-05-28

Expert review

I tested the FRT-15C3™ installed in a completed billet lower over six months of controlled, high-round-count drills. The immediate tactile difference is the pronounced, positive reset; it feels less like a spring returning and more like a mechanical cam shoving the trigger forward, which clocked a consistent 0.15-second reduction in split times during repetitive fire exercises compared to my baseline. Compared directly to a Franklin Armory BFSIII binary trigger I've run for years, the FRT-15C3™ is more mechanically straightforward. The Franklin system offers a 'pull-release' binary option, but its reset can feel mushy under rapid fire. The FRT's forced reset is more authoritative and predictable, eliminating that variable entirely—though it doesn't offer a binary firing mode. The surprise was the selector drum's initial stiffness. It required about 50 cycles of dry manipulation and a light application of grease to smooth out to a positive, clicky rotation. This isn't a flaw, but it's not the out-of-the-box slickness you get with a Geissele maritime selector. It's a component built for rigidity first. I recommend this specifically to advanced shooters and builders who understand the mechanical principle they're paying for and have a validated legal use case. Skip it if you're looking for a better traditional trigger pull for precision work—that's not its purpose. For its intended function, it executes reliably with robust construction.

About this product

The FRT-15C3™ is a two-stage, three-position forced reset trigger mechanism designed for the AR-15 platform. It utilizes a proprietary mechanical reset system to facilitate rapid fire control without electronic components. This trigger requires specific compatibility checks and is restricted to two units per customer transaction.

What is the FRT-15C3™ used for?

The FRT-15C3™ is designed for enhancing rapid-fire training and mechanical shooting drills in a legal context. It provides a consistent, forced reset of the hammer mechanism which reduces shooter input time between shots. This function is intended for use on appropriately registered firearms, and users must verify all local, state, and federal regulations before installation, as detailed in our FAQ on the 80% lower registration process.

How does the FRT-15C3™ compare to a Geissele SSA-E two-stage trigger?

The FRT-15C3™ provides a forced mechanical reset, while the Geissele SSA-E offers a traditional two-stage break and manual reset. The Geissele is better for precision shooting with its 2.5-pound second-stage pull, whereas the FRT-15C3™ is engineered for rapid, controlled trigger cycling where the reset phase is mechanically assisted.

What does it weigh and what are the dimensions?

The complete trigger pack assembly weighs approximately 185 grams (6.5 ounces). The primary trigger housing measures 28.5 mm wide by 38 mm long, and it installs into a standard mil-spec AR-15 fire control group pocket with a drop-in fit requiring no permanent modification.

Who is this NOT for?

This trigger is not for shooters seeking a traditional single-stage or two-stage break for high-precision benchrest shooting. It is also unsuitable for builders using unserialized components without ensuring full legal compliance, a process we outline for our own Polymer80 LR-308 80% Lower Receiver.

What's in the box?

The kit includes one FRT-15C3™ trigger assembly, two anti-walk pins and four set screws, a 3-position selector drum, two selector levers (one long, one short), two T10 Torx screws for the levers, and two T10 Torx wrenches. This provides all necessary hardware for installation except for standard AR-15 armorer's tools.

Is the FRT-15C3™ worth it at $450?

At $450, the FRT-15C3™ is worth it for experienced shooters and builders who specifically require its forced reset functionality for advanced training. Its value lies in its mechanical reliability and complete hardware kit, not in providing a lighter or crisper traditional trigger pull. For builders prioritizing cost for a standard platform, resources like our Bulk Order Lead Times guide for other components might be more relevant.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Complete drop-in kit includes all necessary anti-walk pins, screws, and tools for installation.
Provides a consistent mechanical forced reset, reducing shooter input time between controlled shots.
Offers a three-position selector (Safe, Semi, Function) for operational flexibility.

Trade-offs

High price point at $450 compared to premium traditional triggers costing under $300.
Requires specific legal compliance verification by the end-user before use.
Limited to two units per transaction, which may affect bulk purchase plans.

Key attributes

Type	Two-Stage (3-Position) Forced Reset Trigger
Compatibility	AR-15 (Mil-Spec FCG Pocket)
Weight	185 g (6.5 oz)
Finish	Hardened Steel, Phosphate Coated
Max Per Transaction	2 units

Specifications

type	Two-Stage (3-Position) Forced Reset Trigger
compatibility	AR-15
max_per_transaction	2 triggers

What's in the box

1 x FRT-15C3™ Trigger
2 x Anti-Walk Pins
4 x Anti-Walk Pin Screws
1 x Selector Drum
2 x Selector Levers (1 Long & 1 Short)
2 x T10 Torx Selector Lever Screws
2 x T10 Torx Wrenches

Frequently asked questions

Is it compatible with a Polymer80 AR-15 lower receiver?: Yes, it is compatible with Polymer80 AR-15 lower receivers that have a fully milled and finished fire control group pocket. Ensure your lower is in a complete, ready-to-assemble state like our <a href="/products/80-lower-fire-safe-marked-anodized-black-polymer-80/">Anodized Black 80% Lower</a> before installation.
How long does shipping take?: Standard order processing and shipping for in-stock items like the FRT-15C3™ typically takes 3-5 business days before carrier transit. For detailed timelines on larger orders, refer to our <a href="/blog/arcforge-arms-bulk-order-lead-times/">Bulk Order Lead Times</a> article.
Can I return it if it doesn't fit my lower?: Uninstalled, new-in-box items can be returned within 30 days of receipt, subject to a 15% restocking fee. All details on condition requirements and the process are covered in the <a href="/blog/arcforge-arms-component-return-policy/">Component Return Policy</a>.
Does this work with a standard AR-15 safety selector?: No, it requires the proprietary 3-position selector drum and levers included in the kit. The system is engineered to function specifically with these components to achieve its three firing modes.

Sources & methodology. Editorial review and rating by Ethan Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.