ATM Gearbox 1.2mm Spring Upgrade Part Section B: gray

Section B: gray

Ammo: half length nerf darts

Built in rubber butt pad for secure shoulder placement

- Also Compatible with M4A1 Jm Gen9 by Removing a ring piece From Buffer Tube

Spring type: 12kg

ATM Gearbox 1.2mm Spring Upgrade Part Section B: grayEnhance your ATM gearbox performance with this 1. 2mm piano steel wire spring upgrade. Measuring 19cm in length and finished in black, this spring is engineered to improve firepower and extend shooting range. Crafted for durability and precision, it seamlessly fits ATM gearboxes, delivering reliable and consistent power for advanced users seeking optimal performance. Specifications: Material: piano steel wire. Spring type: 1. 2mm. length: 19cm. Color: