Glock 19 Magazine Sleeve - 21rd PMAG Grip Adapter

A 21-round PMAG in a Glock 19 leaves a visible step between the frame and the magazine body. This sleeve closes it — sliding over the magazine and seating flush against the bottom of the frame for an uninterrupted grip surface and a finished, purpose-built look. Fits Glock 19 Gen 3, Gen 4, and Gen 5.

Key Features

• Flush transition — Removes the exposed step between the G19 frame and a 21-round magazine, so nothing catches on the draw.
• Extended grip surface — Adds usable purchase below the factory frame for a genuine three-finger-plus grip during extended range sessions.
• Ergonomic design — Contours naturally with the Glock 19 grip for a secure, comfortable hold through reloads.
• Durable construction — Precision 3D printed from high-quality material designed to withstand regular range use and everyday handling.

Compatibility

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

Why Use a Magazine Sleeve?
Competition and range shooters run 21-round magazines to cut reloads, but the exposed magazine body below the grip is uncomfortable under recoil and inconsistent from shot to shot. The sleeve turns that gap into grip. It also keeps the magazine from rocking against the frame, and it looks considerably better than bare polymer sticking out the bottom of the gun.

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.