The GrovTec US Inc 3.1 Inch 5 Slot with Push Button Bases Stock AR Black Anodized Picatinny Rail (GTSW192, UPC 811071011921) is a compact aluminum rail section designed to add MIL-STD-1913 Picatinny mounting capability and push-button sling attachment points to stock AR-pattern handguards and similar flat surfaces. With a 3.1-inch overall length, five usable slots, and integrated push-button base holes, it provides a dual-purpose interface for optics, lights, lasers, and QD sling swivels in a single, low-profile component. opticsagent.com+3midwestgunworks.com+3Cheaper Than Dirt+3
Model Identification and Core Specs
Catalog and inventory references for this rail section typically include:
The GTSW192 is categorized as a Stock AR Picatinny rail with push button bases, indicating its intended use on standard AR platform forearms and stocks where a short accessory rail and QD sling attachment are required. midwestgunworks.com+2Cheaper Than Dirt+2
Construction, Material, and Finish
This rail section is precision CNC machined from lightweight, solid aluminum, selected for its strength-to-weight ratio and resistance to corrosion in typical field and range environments. Ammunition Depot+3midwestgunworks.com+3AR15Discounts+3
Key construction details:
Type III hard anodizing increases surface hardness and wear resistance, while the black color blends with most AR receivers and handguards for a uniform appearance.
Picatinny Interface and Accessory Compatibility
The GTSW192 uses a MIL-STD-1913 Picatinny rail pattern, enabling attachment of a broad range of compatible accessories, such as:
With five slots over a 3.1" length, the rail provides enough real estate for small to medium accessories while keeping overall weight and bulk to a minimum. The layout is suitable for forearm or stock mounting locations where space is limited but a rigid Picatinny interface is needed.
Push Button Bases and Sling Integration
A distinguishing feature of the GTSW192 is the inclusion of push button base holes integrated into the rail body. Retailers and similar GrovTec “push button” rail SKUs specify that these holes are designed for QD (Quick Detach) sling swivels, allowing the rail to serve both as an accessory platform and as a sling attachment point. midwestgunworks.com+3midwestgunworks.com+3Ammunition Depot+3
Functional benefits of the push button bases include:
Support for flush-mount QD sling swivels at the rail location.
Flexible sling routing options on AR stocks or forearms without adding separate QD sockets.
Consolidation of accessory mounting and sling attachment in one component, reducing the number of parts on the handguard.
This dual-purpose design is particularly useful on stock AR handguards where mounting surfaces are limited.
Mounting Platform and Compatibility
The GTSW192 is marketed as a Stock AR rail, typically described as:
While some listings mention that GrovTec rails of similar design “will also fit flat surfaces with modifications,” the GTSW192 is primarily configured for standard AR forearms and stock applications, not KeyMod or M-LOK interfaces (which are covered by related models like GTSW231 and GTSW241). midwestgunworks.com+3midwestgunworks.com+3Corvus Arms+3
Included Hardware and Installation
Product descriptions consistently note that mounting hardware is included with the GTSW192, along with an Allen (hex) key for installation on AR-style forearms. Palmetto State Armory+3Sportsman's Outdoor Superstore+3midwestgunworks.com+3
Typical contents:
3.1" 5-slot Picatinny rail with push button bases
Screws and nuts or backing hardware suitable for stock AR handguards
Allen key for the supplied fasteners
General installation characteristics:
Positioning: The rail is aligned with vent holes or a suitable flat section on the AR stock/forearm, ensuring that accessory clearance and sling positioning are appropriate.
Securing hardware: Screws are inserted through the rail and handguard, with backing hardware (e.g., steel plates or nuts) positioned on the interior.
Torque and verification: Screws are tightened securely with the included Allen key, and the user verifies that accessories attach firmly and the push button QD swivels lock and release correctly.
Always follow GrovTec’s recommended torque values and installation notes where provided, and verify compatibility with the specific handguard or stock geometry.
Use Case and Application Context
The GrovTec US Inc GTSW192 3.1 Inch 5 Slot with Push Button Bases Stock AR Black Anodized rail is commonly used in:
AR-15 and AR-platform builds where a short Picatinny section is needed on stock polymer handguards.
Upgrades to factory rifles that lack integrated sling sockets or accessory rails.
Configurations requiring both an accessory rail and QD sling point in the same location to save space and reduce part count. Ammunition Depot+3Cheaper Than Dirt+3AR15Discounts+3
Because of its compact size, it is suitable for mounting at the front of a stock AR forearm for light/laser setup with a sling swivel, or at other positions that benefit from QD sling integration and small accessory mounting.
Technical Specifications (Summary)
GrovTec US Inc GTSW192 – 3.1 Inch 5 Slot with Push Button Bases Stock AR, Black Anodized
By combining a 3.1-inch, five-slot MIL-STD-1913 Picatinny interface with integrated push button bases, solid aluminum construction, Type III black hardcoat anodizing, and included mounting hardware, the GrovTec US Inc 3.1 Inch 5 Slot with Push Button Bases Stock AR Black Anodized GTSW192 offers a compact, technical solution for adding both accessory mounting and QD sling capability to AR-platform stocks and compatible forearms.
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