
Availability: In Stock
The Pachmayr 03853 Polymer Mag Sleeve is a simple, effective adapter that lets you run full-size Glock 20/21 magazines in your compact Glock 29/30 pistol. If you carry a single-stack compact for concealment but want the extra capacity and hand-filling grip of a full-size mag when the situation warrants, this black polymer sleeve bridges that gap. Just slide it over your standard magazine—it seats securely and transforms how your compact handles under fire.
Compact pistols like the Glock 29 and 30 are made for carry, but they can feel small in your hand during extended range sessions or when you need every round. The Mag Sleeve solves that by adapting your existing full-size magazines to fit your compact frame, adding both grip real estate and round count. No tools, no permanent modifications—just a sleeve that stays in place and comes off when you need it.
Whether you're training with your carry gun at the range or running a defensive carbine course where your pistol is backup, having the option to use higher-capacity mags without buying a larger frame is practical and cost-effective. The polymer construction is durable and won't damage your magazines, and the black finish matches standard Glock aesthetics.
| Brand | Pachmayr |
| Model Number | 03853 |
| Finish | Black |
| Material | Polymer |
| Compatible Magazine | Glock 20/21 |
| Compatible Firearm | Glock 29/30 |
Yes. The Pachmayr 03853 is designed specifically to adapt full-size Glock 20/21 magazines for use in the Glock 29 and Glock 30 compact models.
No. The sleeve simply slides over your magazine—no tools or permanent modifications required. It seats securely and can be removed anytime.
The Pachmayr 03853 is designed for Glock 20/21 full-size magazines. Always verify compatibility with your specific magazine before use.
The sleeve slides on and off easily, so you can use it during range sessions and remove it when your compact configuration is what you need. No reason you can't leave it on if that's your preference, but it's designed for flexibility.



SKU: 115701083 • Width: 2.9in • Height: 1.25in • Depth: 4.3in • Weight: 0.13oz





Availability: In Stock
The Pachmayr 03853 Polymer Mag Sleeve is a simple, effective adapter that lets you run full-size Glock 20/21 magazines in your compact Glock 29/30 pistol. If you carry a single-stack compact for concealment but want the extra capacity and hand-filling grip of a full-size mag when the situation warrants, this black polymer sleeve bridges that gap. Just slide it over your standard magazine—it seats securely and transforms how your compact handles under fire.
Compact pistols like the Glock 29 and 30 are made for carry, but they can feel small in your hand during extended range sessions or when you need every round. The Mag Sleeve solves that by adapting your existing full-size magazines to fit your compact frame, adding both grip real estate and round count. No tools, no permanent modifications—just a sleeve that stays in place and comes off when you need it.
Whether you're training with your carry gun at the range or running a defensive carbine course where your pistol is backup, having the option to use higher-capacity mags without buying a larger frame is practical and cost-effective. The polymer construction is durable and won't damage your magazines, and the black finish matches standard Glock aesthetics.
| Brand | Pachmayr |
| Model Number | 03853 |
| Finish | Black |
| Material | Polymer |
| Compatible Magazine | Glock 20/21 |
| Compatible Firearm | Glock 29/30 |
Yes. The Pachmayr 03853 is designed specifically to adapt full-size Glock 20/21 magazines for use in the Glock 29 and Glock 30 compact models.
No. The sleeve simply slides over your magazine—no tools or permanent modifications required. It seats securely and can be removed anytime.
The Pachmayr 03853 is designed for Glock 20/21 full-size magazines. Always verify compatibility with your specific magazine before use.
The sleeve slides on and off easily, so you can use it during range sessions and remove it when your compact configuration is what you need. No reason you can't leave it on if that's your preference, but it's designed for flexibility.
SKU: 115701083 • Width: 2.9in • Height: 1.25in • Depth: 4.3in • Weight: 0.13oz


