M712 Mauser CO2 Steel BB Magazine

Type: 4.5mm Steel BB's 
Manufacturer: KWC
Gun caliber: 4.5 mm (.177 cal)
Power source: CO2
Magazine capacity: 19 rounds
Compatibility: UMX2251807, KWCKMB-18DHN

Reliable and built for speed, the M712 19-round BB Magazine supports full-auto sessions without frequent reloads. Whether you’re training or just enjoying rapid-fire action, this spare mag is designed to keep your M712 broomhandle pistol firing smoothly.

Compatible with select KWC and Umarex models, it's a dependable choice for anyone running this classic CO2-powered sidearm.

Pros:

• Suited for full-auto operation with stable feeding
• Holds 19 steel BBs for extended shooting
• Compatible with KWC and Umarex M712 variants
• Fast and simple to reload between rounds
• Ideal backup magazine for uninterrupted performance

Cons:

• CO2 consumption can be high during rapid fire
• Full-metal build adds extra weight to your loadout