Description
Product Overview
The Polymer80 PF940SC Subcompact Slide and Barrel Package in Black Nitride is a core component set for the dedicated builder seeking a reliable, compact 9mm platform. This combination package pairs a precision-machined bare slide with a matching barrel, offering significant value for those assembling a PF940SC frame. Designed for experienced builders who understand firearm function and local regulations, this kit is intended for lawful personal use, including sport shooting, training, and responsible self-defense. By sourcing these critical components together, you ensure perfect compatibility for your subcompact build while benefiting from a substantial cost saving compared to purchasing each item separately.
Key Features
- Domestically-Machined 17-4 PH Stainless Steel Construction: The slide is CNC-machined from high-quality 17-4 PH stainless steel and heat-treated to a robust 42-43 HRC. This provides exceptional structural integrity and resistance to stress, forming a durable foundation for your build.
- Black Nitride Finish on Slide and Barrel: Both components feature a uniform Black Nitride coating. This treatment is not merely cosmetic; it significantly enhances surface hardness, provides superior corrosion resistance, and improves lubricity for smoother operation and easier maintenance.
- Optimized for the PF940SC Subcompact Frame: Engineered specifically for the Polymer80 PF940SC frame, this slide and barrel combination guarantees proper fit, function, and reliable cycling within the intended subcompact form factor, eliminating compatibility guesswork.
- Bare Slide Design for Customization: Supplied as a bare slide, it allows you to select and install your preferred sights, optic plate, and internal components (such as the recoil spring assembly and striker) to tailor the firearm to your exact specifications and performance requirements.
- Aggressive Front Serrations: The slide incorporates well-defined front serrations, providing positive traction for manual cycling and chamber checks, a critical feature for ensuring control over the smaller slide surface of a subcompact platform.
- Value-Driven Package Deal: This bundle represents a smart economic choice, offering a complete upper assembly solution at a notable discount compared to sourcing the slide and barrel individually.
Performance & Applications
This slide and barrel package is the heart of a customizable subcompact 9mm build. Its applications are defined by its reliable construction and compact dimensions.
Concealed Carry Platform Build: The PF940SC’s subcompact footprint is a proven choice for a discreet carry firearm. When assembled into a complete, compliant firearm, the nitride-finished slide and barrel offer a low-maintenance, corrosion-resistant system suitable for daily carry, where exposure to elements and perspiration is a consideration.
Advanced Training and Skill Development: For the shooter who builds to train, this package allows for the creation of a dedicated practice firearm. The durable 17-4 stainless steel and nitride finish are built to withstand high round counts during repetitive drills, while the bare slide lets you configure sighting systems that match your primary firearm.
Custom Project Foundation: This kit is ideal for the enthusiast who views firearm assembly as a precise craft. It serves as a high-quality starting point for a personalized build where you select every other component—from the trigger system to the sights—resulting in a uniquely configured subcompact tailored to your ergonomic and performance preferences.
About Polymer80
Polymer80 has established itself as a foundational brand in the modern firearms ecosystem by focusing on the needs of the builder. The Dayton, Nevada-based company revolutionized the market by providing high-quality, modular frames and components that empower individuals to legally build firearms to their own specifications. Their commitment is evident in materials like the 17-4 PH stainless steel used in this slide, which is sourced and machined domestically. Polymer80’s expertise lies in engineering components that meet stringent tolerances for reliability, giving builders a trusted platform for their projects. Their products are designed for those with a technical understanding of firearm mechanics and a commitment to following all applicable laws.
Why Buy From John Jovino Gun Shop
When sourcing components for a build, the reliability of your retailer is as important as the quality of the parts. John Jovino Gun Shop, operating from New York City, brings a legacy of industry knowledge and a straightforward, professional approach to the transaction. Dealing with an established shop means you receive genuine products, accurate order fulfillment, and a clear understanding of the regulatory landscape. Their long-standing presence in the industry, from their physical location to their online operations, provides a level of assurance and expertise that complements the technical nature of a build project.
Make Your Decision
The Polymer80 PF940SC Slide and Barrel Package is a calculated choice for the informed builder. It consolidates two major compatibility and quality decisions into one value-oriented purchase. If your goal is to build a durable, corrosion-resistant subcompact 9mm with the freedom to customize the remaining components, this nitride-finished set made from 17-4 stainless steel provides a solid and reliable foundation. Assess your build plan, ensure compliance with all federal, state, and local laws, and if this package aligns with your specifications, it represents a pragmatic step toward completing your PF940SC project.
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Technical Specifications
Frequently Asked Questions
What warranty is included?
Polymer80 stands behind this product with their manufacturer warranty.
Is this a quality product?
Polymer80 has built their reputation on quality, and the Package – PF940SC – Subcompact – Slide and Barrel – BLK exemplifies that commitment.
What makes this product stand out?
The Package – PF940SC – Subcompact – Slide and Barrel – BLK combines quality construction with reliable performance, offering exceptional value.
Who is this product for?
This is ideal for discerning buyers who prioritize quality and reliability.

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Sarah T. (verified owner) –
Been in the market for a while and finally decided to buy from Jovinogunshop. I was comparing this against similar products from eBay and decided to take the chance. Glad I did. Arrived in 2 days, well-packaged, and the quality speaks for itself. Installed it on my G17 Gen4 and ran 170 rounds through it without a single hiccup. This is the real deal.
Shannon B. (verified owner) –
Works as advertised. Satisfied customer here.
Jesse D. (verified owner) –
Third purchase from this store. Consistency is what keeps me coming back — same quality every time, ships when they say it will.
Ashley G. (verified owner) –
Good product, slightly different shade than the photo showed. Still works perfectly though.