Glock 26 Magazine Sleeve - 21rd PMAG Grip Adapter

Running a Glock 19-pattern 21-round magazine in a G26 gets you the capacity, but leaves a long section of magazine exposed below the grip. This sleeve slides over the magazine and seats securely against the bottom of the frame, filling that gap and turning your subcompact into a full-handed grip. Fits Glock 26 Gen 3, Gen 4, and Gen 5.

Key Features

• Seamless grip extension — Bridges the gap between the G26 frame and a 21-round magazine for a comfortable, full-handed grip, and reduces the chance of pinched fingers on reloads.
• Ergonomic design — Contours to the Glock 26 frame for a secure hold and a smooth transition from frame to magazine.
• Durable construction — Precision 3D printed from high-quality material designed to withstand regular range use and everyday handling.
• Clean, factory-like appearance — Eliminates the exposed gap between the compact frame and extended magazine for a refined, integrated look.

Compatibility

• Firearm frame: Glock 26 (Gen 3, Gen 4, Gen 5)
• Magazine fit: Glock 19-pattern 21-round magazines, including the Magpul PMAG 21 GL9 (MAG661) and comparable G19-compatible 21-round magazines.
• Also searched as a magazine spacer, mag adapter, or grip gap filler.

Why Use a Magazine Sleeve?
A magazine sleeve doesn't add capacity — it adapts grip size. Without one, a G26 running an extended magazine leaves your pinky floating against bare magazine body, which hurts recoil control and consistency. The sleeve gives you a continuous grip surface from frame to floorplate, so your hand lands the same way every draw, and the gun looks like it came that way from the factory.

Materials & Colors
Available in PLA+ 2.0, PETG-GF, and PC Polycarbonate, in nine colors.

Please Note
This listing is for the magazine sleeve only. The firearm and magazine shown in the photos are for demonstration and fitment visualization purposes only. No firearm, magazine, or ammunition is included with this purchase.