
Availability: In Stock
The RWB Glock 40SW 31-round magazine delivers serious capacity for shooters who want more rounds downrange without changing mags. Built with a steel-lined black polymer construction, this magazine pairs durability with reliable feeding for your Glock 22 and other compatible .40 S&W platforms. Whether you're running competition stages, training hard at the range, or building a backup mag collection, the extra rounds give you flexibility without sacrificing reliability.
RWB magazines are engineered for straightforward performance—no gimmicks, no fancy coatings, just a solid design that feeds when it matters. The steel-lined construction reinforces the mag body where it takes the hardest hits, while the polymer frame keeps weight down. The 31-round capacity is substantial enough to make mag changes less frequent during longer range sessions, yet the magazine still feeds consistently through the action.
This is a practical choice for shooters who run Glock platform .40 S&W guns and want to maximize their ammo capacity. It's the kind of magazine that lives in a range bag, a competition belt, or a duty rotation—designed to work, not to impress.
| Caliber | .40 S&W |
| Capacity | 31 rounds |
| Material | Steel-lined black polymer |
| Fits | Glock 22 |
Yes, the RWB 31-round magazine is designed to fit and function in the Glock 22, which chambers .40 S&W ammunition.
The steel lining reinforces the magazine body at high-stress points, extending durability and maintaining reliable feeding over extended use, while the polymer construction keeps the overall weight manageable.
The 31-round capacity makes it well-suited for range training and competition shooting where higher round counts reduce the frequency of magazine changes during a stage or drill.

SKU: 115846131 • Weight: 0.3oz
Availability: In Stock
The RWB Glock 40SW 31-round magazine delivers serious capacity for shooters who want more rounds downrange without changing mags. Built with a steel-lined black polymer construction, this magazine pairs durability with reliable feeding for your Glock 22 and other compatible .40 S&W platforms. Whether you're running competition stages, training hard at the range, or building a backup mag collection, the extra rounds give you flexibility without sacrificing reliability.
RWB magazines are engineered for straightforward performance—no gimmicks, no fancy coatings, just a solid design that feeds when it matters. The steel-lined construction reinforces the mag body where it takes the hardest hits, while the polymer frame keeps weight down. The 31-round capacity is substantial enough to make mag changes less frequent during longer range sessions, yet the magazine still feeds consistently through the action.
This is a practical choice for shooters who run Glock platform .40 S&W guns and want to maximize their ammo capacity. It's the kind of magazine that lives in a range bag, a competition belt, or a duty rotation—designed to work, not to impress.
| Caliber | .40 S&W |
| Capacity | 31 rounds |
| Material | Steel-lined black polymer |
| Fits | Glock 22 |
Yes, the RWB 31-round magazine is designed to fit and function in the Glock 22, which chambers .40 S&W ammunition.
The steel lining reinforces the magazine body at high-stress points, extending durability and maintaining reliable feeding over extended use, while the polymer construction keeps the overall weight manageable.
The 31-round capacity makes it well-suited for range training and competition shooting where higher round counts reduce the frequency of magazine changes during a stage or drill.

SKU: 115846131 • Weight: 0.3oz