G&G Armament produces both KeyMod handguards (rail systems with keyhole slots for direct accessory attachment) and adapter rail sets that provide standard 20mm Picatinny rail sections for their KeyMod handguards.
 
G&G KeyMod Rail Products
G&G offers different types of products related to the KeyMod system, including full handguard kits and accessory rail panels. 
G&G KeyMod Rail Adapter Set (G-03-154)
: This specific product is an accessory set containing two 3-inch, 20mm Picatinny rail pieces made from alloy. These adapters install directly into the keyhole-shaped slots of a KeyMod handguard, allowing users to mount standard 20mm accessories like flashlights, lasers, and grips without needing specific KeyMod-compatible accessories. They are easy to install using an Allen key fixture.
G&G KeyMod Rail Panel Set (G-03-157)
: This set consists of four rail covers designed to cover KeyMod holes, protecting the rail and providing better ergonomics.
G&G KeyMod Handguard Mounting Sets: G&G also manufactures complete KeyMod handguards, such as the 
G&G KeyMod Rail III Mounting Set
 or handguards for the GC16 SR series, which feature KeyMod slots at the 3, 6, and 9 o'clock positions and a full 20mm Picatinny rail on top. These are typically made of high-quality aluminum and are free-floated to reduce weight and enhance customization options.