The GrovTec US Inc 2.2 Inch 5 Slot Keymod Picatinny Rail, Black Anodized (GTSW227, UPC 811071012270) is a compact KeyMod accessory rail designed to add a MIL-STD-1913 Picatinny interface to modern modular handguards. Precision CNC machined from lightweight solid aluminum and finished with a Type III black hardcoat anodizing, this 2.2" rail section provides five Picatinny slots for securely mounting lights, lasers, optics mounts, and other rail-compatible accessories without adding unnecessary bulk. Palmetto State Armory+2Mid South Shooters Supply+2
Model Identification and Core Specs
This rail section is part of GrovTec’s KeyMod Picatinny Rail line and is intended for use on any KeyMod-equipped handguard or fore-end where a short, rigid section of Picatinny is needed.
Construction, Material, and Finish
The GTSW227 is built for durability while keeping weight low:
Type III hardcoat anodizing increases surface hardness and helps protect the aluminum body from abrasion, impact, and environmental exposure.
KeyMod Mounting Interface
On the underside, the rail is machined to interface directly with KeyMod slots:
This makes the GTSW227 ideal for users who run KeyMod handguards but need to attach traditional Picatinny-mount accessories at specific positions on the rail.
Picatinny Rail Surface and Accessory Compatibility
The top surface follows the MIL-STD-1913 Picatinny pattern:
Typical compatible accessories include:
Weapon lights and illumination tools
Laser aiming devices
Offset or micro optics mounts (where length permits)
Rail-mounted sling adapters
Handstops or small grips designed for short Picatinny segments Palmetto State Armory+2Ammunition Depot+2
The compact 2.2" form factor offers enough real estate for most short accessories without crowding the handguard.
Included Hardware and Installation
GrovTec ships the GTSW227 with all necessary mounting hardware:
Installation overview:
Position the rail section over the desired KeyMod slots on the handguard.
Insert the KeyMod nuts into the slots from inside or as per standard KeyMod procedure.
Align the rail and loosely thread the screws through the rail into the nuts.
Adjust final position for alignment and accessory placement.
Tighten screws evenly with the supplied Allen key to secure the rail. Mid South Shooters Supply+2Graf & Sons+2
Once installed, the rail provides a solid, wobble-free platform when mounted to a properly spec’d KeyMod handguard.
Dimensional and Packaging Details
Distributor listings provide the following dimensional information for the packaged product:
These dimensions make it a compact accessory that can be placed at strategic locations on the handguard without significantly affecting handling.
Typical Use Cases
The GrovTec US Inc 2.2 Inch 5 Slot Keymod Picatinny Rail GTSW227 is well suited for:
Adding a short Picatinny section for a weapon light or laser near the front of a KeyMod handguard.
Mounting a rail-based QD sling adapter or handstop at a specific location.
Providing a minimal rail footprint for low-profile accessories on competition, duty, or hunting rifles that use KeyMod fore-ends. Ammunition Depot+2Mid South Shooters Supply+2
Because it is modular and removable, the rail can be repositioned or removed entirely as configurations change, without replacing the entire handguard.
Technical Specification Summary
GrovTec US Inc 2.2 Inch 5 Slot Keymod Black Anodized – GTSW227
By combining a KeyMod mounting interface, a 2.2" five-slot MIL-STD-1913 Picatinny surface, precision CNC-machined aluminum construction, and a durable Type III black hardcoat anodized finish, the GrovTec US Inc 2.2 Inch 5 Slot Keymod Black Anodized GTSW227 (UPC 811071012270) offers a compact, technical solution for adding standardized accessory mounting capability to KeyMod-equipped rifles and carbines.
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