Polymer80 PF940SC 80% Subcompact Frame and Jig Kit (Glock 26/27 Compatible)

The polymer80 pf940sc 80% subcompact frame and jig kit (glock 26/27 compatible) represents a precision-engineered solution for builders seeking a compact, concealable platform. Manufactured by Polymer80, this kit provides the foundational components required to complete a subcompact frame from an 80% stage. Designed specifically for Glock 26 and Glock 27 generation 3 compatible parts, this frame kit allows for a custom build without the need for a serialized component transfer at the point of purchase. The kit includes the unfinished frame and a complete jig system to facilitate precise drilling and milling operations.

Overview

The PF940SC is the subcompact variant within Polymer80’s 80% frame lineup, offering a reduced grip length and slide profile optimized for concealed carry. This polymer80 pf940sc 80% subcompact frame and jig kit (glock 26/27 compatible) arrives as a non-functional block of polymer with three pin holes and the trigger housing pocket left unfinished. The included jig provides indexed drill guides and a routing template to ensure proper alignment for the trigger mechanism, locking block pin, and trigger pin locations. The frame material is a reinforced polymer blend, utilizing a steel front locking block insert that is user-installed during completion. The kit supports standard Glock 26/27 lower parts, magazines, and holsters, making it a direct substitute for an OEM frame in terms of fit and function once fully machined.

Features and Specs

This kit is built around the following manufacturer specifications and design characteristics:

• Frame Material: Proprietary heat-stabilized, impact-modified polymer with integrated steel rear rail system and separate steel front locking block insert.
• Compatibility: Accepts all Gen3 Glock 26, 27, 33, and 357S upper assemblies, slide completion parts, and lower parts kits. Magazines: standard Glock 26/27 double-stack magazines.
• Jig System: Precision-machined aluminum guide block with hardened steel drill bushings for 3mm, 4mm, and 6mm pin holes. Includes a router depth stop and clamping mechanism for repeatable alignment.

Additional technical characteristics include an integrated beavertail backstrap, a 1913 Picatinny accessory rail molded into the dust cover, and a flared magazine well for faster reloads. The PF940SC frame uses a polymer trigger housing with a metal ejector housing insert standard to Glock 26/27 pattern builds. The jig kit ships with all necessary drill bits, end mill, and punch set for completion. The frame weight before finishing is approximately 2.3 ounces; final weight depends on slide and barrel selection.

Who It Is For

This polymer80 pf940sc 80% subcompact frame and jig kit (glock 26/27 compatible) is intended for experienced firearms builders, custom gunsmiths, and enthusiasts who require a compact frame for a personal build project. It is not a completed firearm and requires machining skills including drilling, milling, and finishing. The kit is suitable for individuals who want to customize trigger pull, grip texture, and color without purchasing a serialized frame. It is also appropriate for those building a subcompact backup or deep-concealment pistol where aftermarket frame customization is desired. Builders should possess a functional understanding of Glock platform tolerances, pin placement, and trigger assembly. This kit is not recommended for first-time builders without prior experience with 80% frame completion.

Shipping and FFL

This product is classified as a non-firearm frame component under current ATF regulations. As an unfinished 80% frame, it does not require transfer through a Federal Firearms License (FFL) holder for shipment. The polymer80 pf940sc 80% subcompact frame and jig kit (glock 26/27 compatible) can be shipped directly to residential addresses within the United States where state and local laws permit possession and finishing of 80% frames. Customers are solely responsible for verifying compliance with all applicable federal, state, and municipal regulations before ordering. By purchasing this kit, the buyer affirms that they are legally eligible to possess and complete an unfinished frame under their local jurisdiction. No frame will be shipped to any state or locality where such possession is restricted or prohibited. Please allow 3-7 business days for processing and shipping via UPS Ground or FedEx. Signature may be required at delivery.